21852735

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{71}}^2$

素因数の和:184

約数の個数: 36

約数和(自身を含む): 37672584

約数和(自身を除く): 15819849

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 289, 355, 867, 1065, 1207, 1445, 3621, 4335, 5041, 6035, 15123, 18105, 20519, 25205, 61557, 75615, 85697, 102595, 257091, 307785, 428485, 1285455, 1456849, 4370547, 7284245, 21852735]

約数ペア:

[(1, 21852735), (3, 7284245), (5, 4370547), (15, 1456849), (17, 1285455), (51, 428485), (71, 307785), (85, 257091), (213, 102595), (255, 85697), (289, 75615), (355, 61557), (867, 25205), (1065, 20519), (1207, 18105), (1445, 15123), (3621, 6035), (4335, 5041)]