20869695

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 47623680

約数和(自身を除く): 26753985

約数列:

[1, 3, 5, 7, 9, 11, 15, 19, 21, 33, 35, 45, 55, 57, 63, 77, 95, 99, 105, 133, 165, 171, 209, 231, 285, 315, 317, 385, 399, 495, 627, 665, 693, 855, 951, 1045, 1155, 1197, 1463, 1585, 1881, 1995, 2219, 2853, 3135, 3465, 3487, 4389, 4755, 5985, 6023, 6657, 7315, 9405, 10461, 11095, 13167, 14265, 17435, 18069, 19971, 21945, 24409, 30115, 31383, 33285, 42161, 52305, 54207, 65835, 66253, 73227, 90345, 99855, 122045, 126483, 156915, 198759, 210805, 219681, 271035, 331265, 366135, 379449, 463771, 596277, 632415, 993795, 1098405, 1391313, 1897245, 2318855, 2981385, 4173939, 6956565, 20869695]

約数ペア:

[(1, 20869695), (3, 6956565), (5, 4173939), (7, 2981385), (9, 2318855), (11, 1897245), (15, 1391313), (19, 1098405), (21, 993795), (33, 632415), (35, 596277), (45, 463771), (55, 379449), (57, 366135), (63, 331265), (77, 271035), (95, 219681), (99, 210805), (105, 198759), (133, 156915), (165, 126483), (171, 122045), (209, 99855), (231, 90345), (285, 73227), (315, 66253), (317, 65835), (385, 54207), (399, 52305), (495, 42161), (627, 33285), (665, 31383), (693, 30115), (855, 24409), (951, 21945), (1045, 19971), (1155, 18069), (1197, 17435), (1463, 14265), (1585, 13167), (1881, 11095), (1995, 10461), (2219, 9405), (2853, 7315), (3135, 6657), (3465, 6023), (3487, 5985), (4389, 4755)]