20218406

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 34927200

約数和(自身を除く): 14708794

約数列:

[1, 2, 13, 17, 26, 34, 149, 221, 298, 307, 442, 614, 1937, 2533, 3874, 3991, 5066, 5219, 7982, 10438, 32929, 45743, 65858, 67847, 91486, 135694, 594659, 777631, 1189318, 1555262, 10109203, 20218406]

約数ペア:

[(1, 20218406), (2, 10109203), (13, 1555262), (17, 1189318), (26, 777631), (34, 594659), (149, 135694), (221, 91486), (298, 67847), (307, 65858), (442, 45743), (614, 32929), (1937, 10438), (2533, 7982), (3874, 5219), (3991, 5066)]