21296220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{787}}^1$

素因数の和:851

約数の個数: 96

約数和(自身を含む): 66721536

約数和(自身を除く): 45425316

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 41, 44, 55, 60, 66, 82, 110, 123, 132, 164, 165, 205, 220, 246, 330, 410, 451, 492, 615, 660, 787, 820, 902, 1230, 1353, 1574, 1804, 2255, 2361, 2460, 2706, 3148, 3935, 4510, 4722, 5412, 6765, 7870, 8657, 9020, 9444, 11805, 13530, 15740, 17314, 23610, 25971, 27060, 32267, 34628, 43285, 47220, 51942, 64534, 86570, 96801, 103884, 129068, 129855, 161335, 173140, 193602, 259710, 322670, 354937, 387204, 484005, 519420, 645340, 709874, 968010, 1064811, 1419748, 1774685, 1936020, 2129622, 3549370, 4259244, 5324055, 7098740, 10648110, 21296220]

約数ペア:

[(1, 21296220), (2, 10648110), (3, 7098740), (4, 5324055), (5, 4259244), (6, 3549370), (10, 2129622), (11, 1936020), (12, 1774685), (15, 1419748), (20, 1064811), (22, 968010), (30, 709874), (33, 645340), (41, 519420), (44, 484005), (55, 387204), (60, 354937), (66, 322670), (82, 259710), (110, 193602), (123, 173140), (132, 161335), (164, 129855), (165, 129068), (205, 103884), (220, 96801), (246, 86570), (330, 64534), (410, 51942), (451, 47220), (492, 43285), (615, 34628), (660, 32267), (787, 27060), (820, 25971), (902, 23610), (1230, 17314), (1353, 15740), (1574, 13530), (1804, 11805), (2255, 9444), (2361, 9020), (2460, 8657), (2706, 7870), (3148, 6765), (3935, 5412), (4510, 4722)]