21257310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41681}}^1$

素因数の和:41708

約数の個数: 32

約数和(自身を含む): 54019872

約数和(自身を除く): 32762562

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 41681, 83362, 125043, 208405, 250086, 416810, 625215, 708577, 1250430, 1417154, 2125731, 3542885, 4251462, 7085770, 10628655, 21257310]

約数ペア:

[(1, 21257310), (2, 10628655), (3, 7085770), (5, 4251462), (6, 3542885), (10, 2125731), (15, 1417154), (17, 1250430), (30, 708577), (34, 625215), (51, 416810), (85, 250086), (102, 208405), (170, 125043), (255, 83362), (510, 41681)]