21065512

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15581}}^1$

素因数の和:15613

約数の個数: 24

約数和(自身を含む): 42772590

約数和(自身を除く): 21707078

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15581, 31162, 62324, 124648, 202553, 405106, 810212, 1620424, 2633189, 5266378, 10532756, 21065512]

約数ペア:

[(1, 21065512), (2, 10532756), (4, 5266378), (8, 2633189), (13, 1620424), (26, 810212), (52, 405106), (104, 202553), (169, 124648), (338, 62324), (676, 31162), (1352, 15581)]