21345888

素因数分解:

$2^5\times 3^1\times {\mathrm{43}}^1\times {\mathrm{5171}}^1$

素因数の和:5227

約数の個数: 48

約数和(自身を含む): 57347136

約数和(自身を除く): 36001248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 86, 96, 129, 172, 258, 344, 516, 688, 1032, 1376, 2064, 4128, 5171, 10342, 15513, 20684, 31026, 41368, 62052, 82736, 124104, 165472, 222353, 248208, 444706, 496416, 667059, 889412, 1334118, 1778824, 2668236, 3557648, 5336472, 7115296, 10672944, 21345888]

約数ペア:

[(1, 21345888), (2, 10672944), (3, 7115296), (4, 5336472), (6, 3557648), (8, 2668236), (12, 1778824), (16, 1334118), (24, 889412), (32, 667059), (43, 496416), (48, 444706), (86, 248208), (96, 222353), (129, 165472), (172, 124104), (258, 82736), (344, 62052), (516, 41368), (688, 31026), (1032, 20684), (1376, 15513), (2064, 10342), (4128, 5171)]