21755704

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1097}}^1$

素因数の和:1207

約数の個数: 32

約数和(自身を含む): 42558480

約数和(自身を除く): 20802776

約数列:

[1, 2, 4, 8, 37, 67, 74, 134, 148, 268, 296, 536, 1097, 2194, 2479, 4388, 4958, 8776, 9916, 19832, 40589, 73499, 81178, 146998, 162356, 293996, 324712, 587992, 2719463, 5438926, 10877852, 21755704]

約数ペア:

[(1, 21755704), (2, 10877852), (4, 5438926), (8, 2719463), (37, 587992), (67, 324712), (74, 293996), (134, 162356), (148, 146998), (268, 81178), (296, 73499), (536, 40589), (1097, 19832), (2194, 9916), (2479, 8776), (4388, 4958)]