21043704

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1009}}^1$

素因数の和:1108

約数の個数: 64

約数和(自身を含む): 58176000

約数和(自身を除く): 37132296

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 79, 88, 132, 158, 237, 264, 316, 474, 632, 869, 948, 1009, 1738, 1896, 2018, 2607, 3027, 3476, 4036, 5214, 6054, 6952, 8072, 10428, 11099, 12108, 20856, 22198, 24216, 33297, 44396, 66594, 79711, 88792, 133188, 159422, 239133, 266376, 318844, 478266, 637688, 876821, 956532, 1753642, 1913064, 2630463, 3507284, 5260926, 7014568, 10521852, 21043704]

約数ペア:

[(1, 21043704), (2, 10521852), (3, 7014568), (4, 5260926), (6, 3507284), (8, 2630463), (11, 1913064), (12, 1753642), (22, 956532), (24, 876821), (33, 637688), (44, 478266), (66, 318844), (79, 266376), (88, 239133), (132, 159422), (158, 133188), (237, 88792), (264, 79711), (316, 66594), (474, 44396), (632, 33297), (869, 24216), (948, 22198), (1009, 20856), (1738, 12108), (1896, 11099), (2018, 10428), (2607, 8072), (3027, 6952), (3476, 6054), (4036, 5214)]