21988908

素因数分解:

$2^2\times 3^4\times {\mathrm{67867}}^1$

素因数の和:67883

約数の個数: 30

約数和(自身を含む): 57484196

約数和(自身を除く): 35495288

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 67867, 135734, 203601, 271468, 407202, 610803, 814404, 1221606, 1832409, 2443212, 3664818, 5497227, 7329636, 10994454, 21988908]

約数ペア:

[(1, 21988908), (2, 10994454), (3, 7329636), (4, 5497227), (6, 3664818), (9, 2443212), (12, 1832409), (18, 1221606), (27, 814404), (36, 610803), (54, 407202), (81, 271468), (108, 203601), (162, 135734), (324, 67867)]