21497943512

素因数分解:

$2^3\times {\mathrm{163}}^1\times {\mathrm{881}}^1\times {\mathrm{18713}}^1$

素因数の和:19763

約数の個数: 32

約数和(自身を含む): 40604140080

約数和(自身を除く): 19106196568

約数列:

[1, 2, 4, 8, 163, 326, 652, 881, 1304, 1762, 3524, 7048, 18713, 37426, 74852, 143603, 149704, 287206, 574412, 1148824, 3050219, 6100438, 12200876, 16486153, 24401752, 32972306, 65944612, 131889224, 2687242939, 5374485878, 10748971756, 21497943512]

約数ペア:

[(1, 21497943512), (2, 10748971756), (4, 5374485878), (8, 2687242939), (163, 131889224), (326, 65944612), (652, 32972306), (881, 24401752), (1304, 16486153), (1762, 12200876), (3524, 6100438), (7048, 3050219), (18713, 1148824), (37426, 574412), (74852, 287206), (143603, 149704)]