20971290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3313}}^1$

素因数の和:3534

約数の個数: 32

約数和(自身を含む): 50584896

約数和(自身を除く): 29613606

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 211, 422, 633, 1055, 1266, 2110, 3165, 3313, 6330, 6626, 9939, 16565, 19878, 33130, 49695, 99390, 699043, 1398086, 2097129, 3495215, 4194258, 6990430, 10485645, 20971290]

約数ペア:

[(1, 20971290), (2, 10485645), (3, 6990430), (5, 4194258), (6, 3495215), (10, 2097129), (15, 1398086), (30, 699043), (211, 99390), (422, 49695), (633, 33130), (1055, 19878), (1266, 16565), (2110, 9939), (3165, 6626), (3313, 6330)]