20621172

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 57746304

約数和(自身を除く): 37125132

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 61, 66, 78, 122, 132, 143, 156, 183, 197, 244, 286, 366, 394, 429, 572, 591, 671, 732, 788, 793, 858, 1182, 1342, 1586, 1716, 2013, 2167, 2364, 2379, 2561, 2684, 3172, 4026, 4334, 4758, 5122, 6501, 7683, 8052, 8668, 8723, 9516, 10244, 12017, 13002, 15366, 17446, 24034, 26004, 26169, 28171, 30732, 34892, 36051, 48068, 52338, 56342, 72102, 84513, 104676, 112684, 132187, 144204, 156221, 169026, 264374, 312442, 338052, 396561, 468663, 528748, 624884, 793122, 937326, 1586244, 1718431, 1874652, 3436862, 5155293, 6873724, 10310586, 20621172]

約数ペア:

[(1, 20621172), (2, 10310586), (3, 6873724), (4, 5155293), (6, 3436862), (11, 1874652), (12, 1718431), (13, 1586244), (22, 937326), (26, 793122), (33, 624884), (39, 528748), (44, 468663), (52, 396561), (61, 338052), (66, 312442), (78, 264374), (122, 169026), (132, 156221), (143, 144204), (156, 132187), (183, 112684), (197, 104676), (244, 84513), (286, 72102), (366, 56342), (394, 52338), (429, 48068), (572, 36051), (591, 34892), (671, 30732), (732, 28171), (788, 26169), (793, 26004), (858, 24034), (1182, 17446), (1342, 15366), (1586, 13002), (1716, 12017), (2013, 10244), (2167, 9516), (2364, 8723), (2379, 8668), (2561, 8052), (2684, 7683), (3172, 6501), (4026, 5122), (4334, 4758)]