21777830

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:944

約数の個数: 32

約数和(自身を含む): 40875840

約数和(自身を除く): 19098010

約数列:

[1, 2, 5, 10, 37, 71, 74, 142, 185, 355, 370, 710, 829, 1658, 2627, 4145, 5254, 8290, 13135, 26270, 30673, 58859, 61346, 117718, 153365, 294295, 306730, 588590, 2177783, 4355566, 10888915, 21777830]

約数ペア:

[(1, 21777830), (2, 10888915), (5, 4355566), (10, 2177783), (37, 588590), (71, 306730), (74, 294295), (142, 153365), (185, 117718), (355, 61346), (370, 58859), (710, 30673), (829, 26270), (1658, 13135), (2627, 8290), (4145, 5254)]