19912788

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2549}}^1$

素因数の和:2597

約数の個数: 72

約数和(自身を含む): 59404800

約数和(自身を除く): 39492012

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2549, 2604, 3906, 5098, 7647, 7812, 10196, 15294, 17843, 22941, 30588, 35686, 45882, 53529, 71372, 79019, 91764, 107058, 158038, 160587, 214116, 237057, 316076, 321174, 474114, 553133, 642348, 711171, 948228, 1106266, 1422342, 1659399, 2212532, 2844684, 3318798, 4978197, 6637596, 9956394, 19912788]

約数ペア:

[(1, 19912788), (2, 9956394), (3, 6637596), (4, 4978197), (6, 3318798), (7, 2844684), (9, 2212532), (12, 1659399), (14, 1422342), (18, 1106266), (21, 948228), (28, 711171), (31, 642348), (36, 553133), (42, 474114), (62, 321174), (63, 316076), (84, 237057), (93, 214116), (124, 160587), (126, 158038), (186, 107058), (217, 91764), (252, 79019), (279, 71372), (372, 53529), (434, 45882), (558, 35686), (651, 30588), (868, 22941), (1116, 17843), (1302, 15294), (1953, 10196), (2549, 7812), (2604, 7647), (3906, 5098)]