21612660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8377}}^1$

素因数の和:8432

約数の個数: 48

約数和(自身を含む): 61930176

約数和(自身を除く): 40317516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8377, 16754, 25131, 33508, 41885, 50262, 83770, 100524, 125655, 167540, 251310, 360211, 502620, 720422, 1080633, 1440844, 1801055, 2161266, 3602110, 4322532, 5403165, 7204220, 10806330, 21612660]

約数ペア:

[(1, 21612660), (2, 10806330), (3, 7204220), (4, 5403165), (5, 4322532), (6, 3602110), (10, 2161266), (12, 1801055), (15, 1440844), (20, 1080633), (30, 720422), (43, 502620), (60, 360211), (86, 251310), (129, 167540), (172, 125655), (215, 100524), (258, 83770), (430, 50262), (516, 41885), (645, 33508), (860, 25131), (1290, 16754), (2580, 8377)]