18919373902

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{20113}}^1$

素因数の和:20186

約数の個数: 72

約数和(自身を含む): 35247934512

約数和(自身を除く): 16328560610

約数列:

[1, 2, 11, 13, 22, 23, 26, 46, 121, 143, 169, 242, 253, 286, 299, 338, 506, 598, 1573, 1859, 2783, 3146, 3289, 3718, 3887, 5566, 6578, 7774, 20113, 20449, 36179, 40226, 40898, 42757, 72358, 85514, 221243, 261469, 442486, 462599, 470327, 522938, 925198, 940654, 2433673, 2876159, 3399097, 4867346, 5088589, 5752318, 6013787, 6798194, 10177178, 12027574, 31637749, 37390067, 55974479, 63275498, 66151657, 74780134, 78179231, 111948958, 132303314, 156358462, 411290737, 727668227, 822581474, 859971541, 1455336454, 1719943082, 9459686951, 18919373902]

約数ペア:

[(1, 18919373902), (2, 9459686951), (11, 1719943082), (13, 1455336454), (22, 859971541), (23, 822581474), (26, 727668227), (46, 411290737), (121, 156358462), (143, 132303314), (169, 111948958), (242, 78179231), (253, 74780134), (286, 66151657), (299, 63275498), (338, 55974479), (506, 37390067), (598, 31637749), (1573, 12027574), (1859, 10177178), (2783, 6798194), (3146, 6013787), (3289, 5752318), (3718, 5088589), (3887, 4867346), (5566, 3399097), (6578, 2876159), (7774, 2433673), (20113, 940654), (20449, 925198), (36179, 522938), (40226, 470327), (40898, 462599), (42757, 442486), (72358, 261469), (85514, 221243)]