20855952

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^2\times {\mathrm{857}}^1$

素因数の和:897

約数の個数: 90

約数和(自身を含む): 63276642

約数和(自身を除く): 42420690

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 169, 208, 234, 312, 338, 468, 507, 624, 676, 857, 936, 1014, 1352, 1521, 1714, 1872, 2028, 2571, 2704, 3042, 3428, 4056, 5142, 6084, 6856, 7713, 8112, 10284, 11141, 12168, 13712, 15426, 20568, 22282, 24336, 30852, 33423, 41136, 44564, 61704, 66846, 89128, 100269, 123408, 133692, 144833, 178256, 200538, 267384, 289666, 401076, 434499, 534768, 579332, 802152, 868998, 1158664, 1303497, 1604304, 1737996, 2317328, 2606994, 3475992, 5213988, 6951984, 10427976, 20855952]

約数ペア:

[(1, 20855952), (2, 10427976), (3, 6951984), (4, 5213988), (6, 3475992), (8, 2606994), (9, 2317328), (12, 1737996), (13, 1604304), (16, 1303497), (18, 1158664), (24, 868998), (26, 802152), (36, 579332), (39, 534768), (48, 434499), (52, 401076), (72, 289666), (78, 267384), (104, 200538), (117, 178256), (144, 144833), (156, 133692), (169, 123408), (208, 100269), (234, 89128), (312, 66846), (338, 61704), (468, 44564), (507, 41136), (624, 33423), (676, 30852), (857, 24336), (936, 22282), (1014, 20568), (1352, 15426), (1521, 13712), (1714, 12168), (1872, 11141), (2028, 10284), (2571, 8112), (2704, 7713), (3042, 6856), (3428, 6084), (4056, 5142)]