21745492

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{421}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 39288200

約数和(自身を除く): 17542708

約数列:

[1, 2, 4, 37, 74, 148, 349, 421, 698, 842, 1396, 1684, 12913, 15577, 25826, 31154, 51652, 62308, 146929, 293858, 587716, 5436373, 10872746, 21745492]

約数ペア:

[(1, 21745492), (2, 10872746), (4, 5436373), (37, 587716), (74, 293858), (148, 146929), (349, 62308), (421, 51652), (698, 31154), (842, 25826), (1396, 15577), (1684, 12913)]