20686956

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{853}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 50502144

約数和(自身を除く): 29815188

約数列:

[1, 2, 3, 4, 6, 12, 43, 47, 86, 94, 129, 141, 172, 188, 258, 282, 516, 564, 853, 1706, 2021, 2559, 3412, 4042, 5118, 6063, 8084, 10236, 12126, 24252, 36679, 40091, 73358, 80182, 110037, 120273, 146716, 160364, 220074, 240546, 440148, 481092, 1723913, 3447826, 5171739, 6895652, 10343478, 20686956]

約数ペア:

[(1, 20686956), (2, 10343478), (3, 6895652), (4, 5171739), (6, 3447826), (12, 1723913), (43, 481092), (47, 440148), (86, 240546), (94, 220074), (129, 160364), (141, 146716), (172, 120273), (188, 110037), (258, 80182), (282, 73358), (516, 40091), (564, 36679), (853, 24252), (1706, 12126), (2021, 10236), (2559, 8084), (3412, 6063), (4042, 5118)]