21167451378

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^2\times {\mathrm{263}}^1\times {\mathrm{887}}^1$

素因数の和:1300

約数の個数: 72

約数和(自身を含む): 46747381824

約数和(自身を除く): 25579930446

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 263, 426, 526, 639, 789, 887, 1278, 1578, 1774, 2367, 2661, 4734, 5041, 5322, 7983, 10082, 15123, 15966, 18673, 30246, 37346, 45369, 56019, 62977, 90738, 112038, 125954, 168057, 188931, 233281, 336114, 377862, 466562, 566793, 699843, 1133586, 1325783, 1399686, 2099529, 2651566, 3977349, 4199058, 4471367, 7954698, 8942734, 11932047, 13414101, 16562951, 23864094, 26828202, 33125902, 40242303, 49688853, 80484606, 99377706, 149066559, 298133118, 1175969521, 2351939042, 3527908563, 7055817126, 10583725689, 21167451378]

約数ペア:

[(1, 21167451378), (2, 10583725689), (3, 7055817126), (6, 3527908563), (9, 2351939042), (18, 1175969521), (71, 298133118), (142, 149066559), (213, 99377706), (263, 80484606), (426, 49688853), (526, 40242303), (639, 33125902), (789, 26828202), (887, 23864094), (1278, 16562951), (1578, 13414101), (1774, 11932047), (2367, 8942734), (2661, 7954698), (4734, 4471367), (5041, 4199058), (5322, 3977349), (7983, 2651566), (10082, 2099529), (15123, 1399686), (15966, 1325783), (18673, 1133586), (30246, 699843), (37346, 566793), (45369, 466562), (56019, 377862), (62977, 336114), (90738, 233281), (112038, 188931), (125954, 168057)]