21722668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 44470944

約数和(自身を除く): 22748276

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 113, 187, 226, 257, 374, 452, 514, 748, 1028, 1243, 1921, 2486, 2827, 3842, 4369, 4972, 5654, 7684, 8738, 11308, 17476, 21131, 29041, 42262, 48059, 58082, 84524, 96118, 116164, 192236, 319451, 493697, 638902, 987394, 1277804, 1974788, 5430667, 10861334, 21722668]

約数ペア:

[(1, 21722668), (2, 10861334), (4, 5430667), (11, 1974788), (17, 1277804), (22, 987394), (34, 638902), (44, 493697), (68, 319451), (113, 192236), (187, 116164), (226, 96118), (257, 84524), (374, 58082), (452, 48059), (514, 42262), (748, 29041), (1028, 21131), (1243, 17476), (1921, 11308), (2486, 8738), (2827, 7684), (3842, 5654), (4369, 4972)]