21490936005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{5471}}^1$

素因数の和:5695

約数の個数: 128

約数和(自身を含む): 45386956800

約数和(自身を除く): 23896020795

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 33, 35, 55, 57, 77, 95, 105, 133, 165, 179, 209, 231, 285, 385, 399, 537, 627, 665, 895, 1045, 1155, 1253, 1463, 1969, 1995, 2685, 3135, 3401, 3759, 4389, 5471, 5907, 6265, 7315, 9845, 10203, 13783, 16413, 17005, 18795, 21945, 23807, 27355, 29535, 37411, 38297, 41349, 51015, 60181, 68915, 71421, 82065, 103949, 112233, 114891, 119035, 180543, 187055, 191485, 206745, 261877, 300905, 311847, 357105, 421267, 519745, 561165, 574455, 727643, 785631, 902715, 979309, 1143439, 1263801, 1309385, 1559235, 2106335, 2182929, 2937927, 3430317, 3638215, 3928155, 4896545, 5717195, 6319005, 6855163, 8004073, 10772399, 10914645, 14689635, 17151585, 18606871, 20565489, 24012219, 32317197, 34275815, 40020365, 53861995, 55820613, 75406793, 93034355, 102827445, 120061095, 130248097, 161585985, 204675581, 226220379, 279103065, 377033965, 390744291, 614026743, 651240485, 1023377905, 1131101895, 1432729067, 1953721455, 3070133715, 4298187201, 7163645335, 21490936005]

約数ペア:

[(1, 21490936005), (3, 7163645335), (5, 4298187201), (7, 3070133715), (11, 1953721455), (15, 1432729067), (19, 1131101895), (21, 1023377905), (33, 651240485), (35, 614026743), (55, 390744291), (57, 377033965), (77, 279103065), (95, 226220379), (105, 204675581), (133, 161585985), (165, 130248097), (179, 120061095), (209, 102827445), (231, 93034355), (285, 75406793), (385, 55820613), (399, 53861995), (537, 40020365), (627, 34275815), (665, 32317197), (895, 24012219), (1045, 20565489), (1155, 18606871), (1253, 17151585), (1463, 14689635), (1969, 10914645), (1995, 10772399), (2685, 8004073), (3135, 6855163), (3401, 6319005), (3759, 5717195), (4389, 4896545), (5471, 3928155), (5907, 3638215), (6265, 3430317), (7315, 2937927), (9845, 2182929), (10203, 2106335), (13783, 1559235), (16413, 1309385), (17005, 1263801), (18795, 1143439), (21945, 979309), (23807, 902715), (27355, 785631), (29535, 727643), (37411, 574455), (38297, 561165), (41349, 519745), (51015, 421267), (60181, 357105), (68915, 311847), (71421, 300905), (82065, 261877), (103949, 206745), (112233, 191485), (114891, 187055), (119035, 180543)]