21427472

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{577}}^1$

素因数の和:807

約数の個数: 40

約数和(自身を含む): 45583392

約数和(自身を除く): 24155920

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 211, 422, 577, 844, 1154, 1688, 2308, 2321, 3376, 4616, 4642, 6347, 9232, 9284, 12694, 18568, 25388, 37136, 50776, 101552, 121747, 243494, 486988, 973976, 1339217, 1947952, 2678434, 5356868, 10713736, 21427472]

約数ペア:

[(1, 21427472), (2, 10713736), (4, 5356868), (8, 2678434), (11, 1947952), (16, 1339217), (22, 973976), (44, 486988), (88, 243494), (176, 121747), (211, 101552), (422, 50776), (577, 37136), (844, 25388), (1154, 18568), (1688, 12694), (2308, 9284), (2321, 9232), (3376, 6347), (4616, 4642)]