64216971

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{881}}^1$

素因数の和:996

約数の個数: 48

約数和(自身を含む): 115577280

約数和(自身を除く): 51360309

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 89, 91, 117, 267, 273, 623, 801, 819, 881, 1157, 1869, 2643, 3471, 5607, 6167, 7929, 8099, 10413, 11453, 18501, 24297, 34359, 55503, 72891, 78409, 80171, 103077, 235227, 240513, 548863, 705681, 721539, 1019317, 1646589, 3057951, 4939767, 7135219, 9173853, 21405657, 64216971]

約数ペア:

[(1, 64216971), (3, 21405657), (7, 9173853), (9, 7135219), (13, 4939767), (21, 3057951), (39, 1646589), (63, 1019317), (89, 721539), (91, 705681), (117, 548863), (267, 240513), (273, 235227), (623, 103077), (801, 80171), (819, 78409), (881, 72891), (1157, 55503), (1869, 34359), (2643, 24297), (3471, 18501), (5607, 11453), (6167, 10413), (7929, 8099)]