20866872

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1423}}^1$

素因数の和:1492

約数の個数: 64

約数和(自身を含む): 57415680

約数和(自身を除く): 36548808

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 47, 52, 78, 94, 104, 141, 156, 188, 282, 312, 376, 564, 611, 1128, 1222, 1423, 1833, 2444, 2846, 3666, 4269, 4888, 5692, 7332, 8538, 11384, 14664, 17076, 18499, 34152, 36998, 55497, 66881, 73996, 110994, 133762, 147992, 200643, 221988, 267524, 401286, 443976, 535048, 802572, 869453, 1605144, 1738906, 2608359, 3477812, 5216718, 6955624, 10433436, 20866872]

約数ペア:

[(1, 20866872), (2, 10433436), (3, 6955624), (4, 5216718), (6, 3477812), (8, 2608359), (12, 1738906), (13, 1605144), (24, 869453), (26, 802572), (39, 535048), (47, 443976), (52, 401286), (78, 267524), (94, 221988), (104, 200643), (141, 147992), (156, 133762), (188, 110994), (282, 73996), (312, 66881), (376, 55497), (564, 36998), (611, 34152), (1128, 18499), (1222, 17076), (1423, 14664), (1833, 11384), (2444, 8538), (2846, 7332), (3666, 5692), (4269, 4888)]