21629624

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{349}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 41664000

約数和(自身を除く): 20034376

約数列:

[1, 2, 4, 8, 61, 122, 127, 244, 254, 349, 488, 508, 698, 1016, 1396, 2792, 7747, 15494, 21289, 30988, 42578, 44323, 61976, 85156, 88646, 170312, 177292, 354584, 2703703, 5407406, 10814812, 21629624]

約数ペア:

[(1, 21629624), (2, 10814812), (4, 5407406), (8, 2703703), (61, 354584), (122, 177292), (127, 170312), (244, 88646), (254, 85156), (349, 61976), (488, 44323), (508, 42578), (698, 30988), (1016, 21289), (1396, 15494), (2792, 7747)]