21173112

素因数分解:

$2^3\times 3^2\times {\mathrm{409}}^1\times {\mathrm{719}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 57564000

約数和(自身を除く): 36390888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 409, 719, 818, 1227, 1438, 1636, 2157, 2454, 2876, 3272, 3681, 4314, 4908, 5752, 6471, 7362, 8628, 9816, 12942, 14724, 17256, 25884, 29448, 51768, 294071, 588142, 882213, 1176284, 1764426, 2352568, 2646639, 3528852, 5293278, 7057704, 10586556, 21173112]

約数ペア:

[(1, 21173112), (2, 10586556), (3, 7057704), (4, 5293278), (6, 3528852), (8, 2646639), (9, 2352568), (12, 1764426), (18, 1176284), (24, 882213), (36, 588142), (72, 294071), (409, 51768), (719, 29448), (818, 25884), (1227, 17256), (1438, 14724), (1636, 12942), (2157, 9816), (2454, 8628), (2876, 7362), (3272, 6471), (3681, 5752), (4314, 4908)]