21000455541

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{88813}}^1$

素因数の和:88922

約数の個数: 48

約数和(自身を含む): 34138680576

約数和(自身を除く): 13138225035

約数列:

[1, 3, 9, 13, 39, 43, 47, 117, 129, 141, 387, 423, 559, 611, 1677, 1833, 2021, 5031, 5499, 6063, 18189, 26273, 78819, 88813, 236457, 266439, 799317, 1154569, 3463707, 3818959, 4174211, 10391121, 11456877, 12522633, 34370631, 37567899, 49646467, 54264743, 148939401, 162794229, 179491073, 446818203, 488382687, 538473219, 1615419657, 2333383949, 7000151847, 21000455541]

約数ペア:

[(1, 21000455541), (3, 7000151847), (9, 2333383949), (13, 1615419657), (39, 538473219), (43, 488382687), (47, 446818203), (117, 179491073), (129, 162794229), (141, 148939401), (387, 54264743), (423, 49646467), (559, 37567899), (611, 34370631), (1677, 12522633), (1833, 11456877), (2021, 10391121), (5031, 4174211), (5499, 3818959), (6063, 3463707), (18189, 1154569), (26273, 799317), (78819, 266439), (88813, 236457)]