21807370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{619}}^1$

素因数の和:910

約数の個数: 32

約数和(自身を含む): 42497280

約数和(自身を除く): 20689910

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 271, 542, 619, 1238, 1355, 2710, 3095, 3523, 6190, 7046, 8047, 16094, 17615, 35230, 40235, 80470, 167749, 335498, 838745, 1677490, 2180737, 4361474, 10903685, 21807370]

約数ペア:

[(1, 21807370), (2, 10903685), (5, 4361474), (10, 2180737), (13, 1677490), (26, 838745), (65, 335498), (130, 167749), (271, 80470), (542, 40235), (619, 35230), (1238, 17615), (1355, 16094), (2710, 8047), (3095, 7046), (3523, 6190)]