21806642

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4013}}^1$

素因数の和:4058

約数の個数: 32

約数和(自身を含む): 40461120

約数和(自身を除く): 18654478

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 143, 209, 247, 286, 418, 494, 2717, 4013, 5434, 8026, 44143, 52169, 76247, 88286, 104338, 152494, 573859, 838717, 991211, 1147718, 1677434, 1982422, 10903321, 21806642]

約数ペア:

[(1, 21806642), (2, 10903321), (11, 1982422), (13, 1677434), (19, 1147718), (22, 991211), (26, 838717), (38, 573859), (143, 152494), (209, 104338), (247, 88286), (286, 76247), (418, 52169), (494, 44143), (2717, 8026), (4013, 5434)]