21817380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1$

素因数の和:445

約数の個数: 96

約数和(自身を含む): 66777984

約数和(自身を除く): 44960604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 83, 130, 156, 166, 195, 249, 260, 332, 337, 390, 415, 498, 674, 780, 830, 996, 1011, 1079, 1245, 1348, 1660, 1685, 2022, 2158, 2490, 3237, 3370, 4044, 4316, 4381, 4980, 5055, 5395, 6474, 6740, 8762, 10110, 10790, 12948, 13143, 16185, 17524, 20220, 21580, 21905, 26286, 27971, 32370, 43810, 52572, 55942, 64740, 65715, 83913, 87620, 111884, 131430, 139855, 167826, 262860, 279710, 335652, 363623, 419565, 559420, 727246, 839130, 1090869, 1454492, 1678260, 1818115, 2181738, 3636230, 4363476, 5454345, 7272460, 10908690, 21817380]

約数ペア:

[(1, 21817380), (2, 10908690), (3, 7272460), (4, 5454345), (5, 4363476), (6, 3636230), (10, 2181738), (12, 1818115), (13, 1678260), (15, 1454492), (20, 1090869), (26, 839130), (30, 727246), (39, 559420), (52, 419565), (60, 363623), (65, 335652), (78, 279710), (83, 262860), (130, 167826), (156, 139855), (166, 131430), (195, 111884), (249, 87620), (260, 83913), (332, 65715), (337, 64740), (390, 55942), (415, 52572), (498, 43810), (674, 32370), (780, 27971), (830, 26286), (996, 21905), (1011, 21580), (1079, 20220), (1245, 17524), (1348, 16185), (1660, 13143), (1685, 12948), (2022, 10790), (2158, 10110), (2490, 8762), (3237, 6740), (3370, 6474), (4044, 5395), (4316, 5055), (4381, 4980)]