21512310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42181}}^1$

素因数の和:42208

約数の個数: 32

約数和(自身を含む): 54667872

約数和(自身を除く): 33155562

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 42181, 84362, 126543, 210905, 253086, 421810, 632715, 717077, 1265430, 1434154, 2151231, 3585385, 4302462, 7170770, 10756155, 21512310]

約数ペア:

[(1, 21512310), (2, 10756155), (3, 7170770), (5, 4302462), (6, 3585385), (10, 2151231), (15, 1434154), (17, 1265430), (30, 717077), (34, 632715), (51, 421810), (85, 253086), (102, 210905), (170, 126543), (255, 84362), (510, 42181)]