21859201

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2699}}^1$

素因数の和:2808

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 5356799

約数列:

[1, 7, 13, 89, 91, 623, 1157, 2699, 8099, 18893, 35087, 240211, 245609, 1681477, 3122743, 21859201]

約数ペア:

[(1, 21859201), (7, 3122743), (13, 1681477), (89, 245609), (91, 240211), (623, 35087), (1157, 18893), (2699, 8099)]