20984568

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{787}}^1$

素因数の和:908

約数の個数: 64

約数和(自身を含む): 57870720

約数和(自身を除く): 36886152

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 101, 132, 202, 264, 303, 404, 606, 787, 808, 1111, 1212, 1574, 2222, 2361, 2424, 3148, 3333, 4444, 4722, 6296, 6666, 8657, 8888, 9444, 13332, 17314, 18888, 25971, 26664, 34628, 51942, 69256, 79487, 103884, 158974, 207768, 238461, 317948, 476922, 635896, 874357, 953844, 1748714, 1907688, 2623071, 3497428, 5246142, 6994856, 10492284, 20984568]

約数ペア:

[(1, 20984568), (2, 10492284), (3, 6994856), (4, 5246142), (6, 3497428), (8, 2623071), (11, 1907688), (12, 1748714), (22, 953844), (24, 874357), (33, 635896), (44, 476922), (66, 317948), (88, 238461), (101, 207768), (132, 158974), (202, 103884), (264, 79487), (303, 69256), (404, 51942), (606, 34628), (787, 26664), (808, 25971), (1111, 18888), (1212, 17314), (1574, 13332), (2222, 9444), (2361, 8888), (2424, 8657), (3148, 6666), (3333, 6296), (4444, 4722)]