21579372

素因数分解:

$2^2\times 3^5\times {\mathrm{149}}^2$

素因数の和:317

約数の個数: 54

約数和(自身を含む): 56950348

約数和(自身を除く): 35370976

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 149, 162, 243, 298, 324, 447, 486, 596, 894, 972, 1341, 1788, 2682, 4023, 5364, 8046, 12069, 16092, 22201, 24138, 36207, 44402, 48276, 66603, 72414, 88804, 133206, 144828, 199809, 266412, 399618, 599427, 799236, 1198854, 1798281, 2397708, 3596562, 5394843, 7193124, 10789686, 21579372]

約数ペア:

[(1, 21579372), (2, 10789686), (3, 7193124), (4, 5394843), (6, 3596562), (9, 2397708), (12, 1798281), (18, 1198854), (27, 799236), (36, 599427), (54, 399618), (81, 266412), (108, 199809), (149, 144828), (162, 133206), (243, 88804), (298, 72414), (324, 66603), (447, 48276), (486, 44402), (596, 36207), (894, 24138), (972, 22201), (1341, 16092), (1788, 12069), (2682, 8046), (4023, 5364)]