21549285

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1657}}^1$

素因数の和:1702

約数の個数: 36

約数和(自身を含む): 39702468

約数和(自身を除く): 18153183

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 289, 765, 867, 1445, 1657, 2601, 4335, 4971, 8285, 13005, 14913, 24855, 28169, 74565, 84507, 140845, 253521, 422535, 478873, 1267605, 1436619, 2394365, 4309857, 7183095, 21549285]

約数ペア:

[(1, 21549285), (3, 7183095), (5, 4309857), (9, 2394365), (15, 1436619), (17, 1267605), (45, 478873), (51, 422535), (85, 253521), (153, 140845), (255, 84507), (289, 74565), (765, 28169), (867, 24855), (1445, 14913), (1657, 13005), (2601, 8285), (4335, 4971)]