21694465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{677}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 30754080

約数和(自身を除く): 9059615

約数列:

[1, 5, 13, 17, 29, 65, 85, 145, 221, 377, 493, 677, 1105, 1885, 2465, 3385, 6409, 8801, 11509, 19633, 32045, 44005, 57545, 98165, 149617, 255229, 333761, 748085, 1276145, 1668805, 4338893, 21694465]

約数ペア:

[(1, 21694465), (5, 4338893), (13, 1668805), (17, 1276145), (29, 748085), (65, 333761), (85, 255229), (145, 149617), (221, 98165), (377, 57545), (493, 44005), (677, 32045), (1105, 19633), (1885, 11509), (2465, 8801), (3385, 6409)]