21495630145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{769}}^1\times {\mathrm{1163}}^1$

素因数の和:1990

約数の個数: 64

約数和(自身を含む): 30975436800

約数和(自身を除く): 9479806655

約数列:

[1, 5, 11, 19, 23, 55, 95, 115, 209, 253, 437, 769, 1045, 1163, 1265, 2185, 3845, 4807, 5815, 8459, 12793, 14611, 17687, 22097, 24035, 26749, 42295, 63965, 73055, 88435, 110485, 133745, 160721, 194557, 243067, 294239, 336053, 508231, 803605, 894347, 972785, 1215335, 1471195, 1680265, 2541155, 3696583, 4471735, 5590541, 9837817, 16992593, 18482915, 20569981, 27952705, 49189085, 84962965, 102849905, 186918523, 226269791, 390829639, 934592615, 1131348955, 1954148195, 4299126029, 21495630145]

約数ペア:

[(1, 21495630145), (5, 4299126029), (11, 1954148195), (19, 1131348955), (23, 934592615), (55, 390829639), (95, 226269791), (115, 186918523), (209, 102849905), (253, 84962965), (437, 49189085), (769, 27952705), (1045, 20569981), (1163, 18482915), (1265, 16992593), (2185, 9837817), (3845, 5590541), (4807, 4471735), (5815, 3696583), (8459, 2541155), (12793, 1680265), (14611, 1471195), (17687, 1215335), (22097, 972785), (24035, 894347), (26749, 803605), (42295, 508231), (63965, 336053), (73055, 294239), (88435, 243067), (110485, 194557), (133745, 160721)]