217981848

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{1987}}^1$

素因数の和:2656

約数の個数: 64

約数和(自身を含む): 624072960

約数和(自身を除く): 406091112

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 653, 1306, 1959, 1987, 2612, 3918, 3974, 4571, 5224, 5961, 7836, 7948, 9142, 11922, 13713, 13909, 15672, 15896, 18284, 23844, 27426, 27818, 36568, 41727, 47688, 54852, 55636, 83454, 109704, 111272, 166908, 333816, 1297511, 2595022, 3892533, 5190044, 7785066, 9082577, 10380088, 15570132, 18165154, 27247731, 31140264, 36330308, 54495462, 72660616, 108990924, 217981848]

約数ペア:

[(1, 217981848), (2, 108990924), (3, 72660616), (4, 54495462), (6, 36330308), (7, 31140264), (8, 27247731), (12, 18165154), (14, 15570132), (21, 10380088), (24, 9082577), (28, 7785066), (42, 5190044), (56, 3892533), (84, 2595022), (168, 1297511), (653, 333816), (1306, 166908), (1959, 111272), (1987, 109704), (2612, 83454), (3918, 55636), (3974, 54852), (4571, 47688), (5224, 41727), (5961, 36568), (7836, 27818), (7948, 27426), (9142, 23844), (11922, 18284), (13713, 15896), (13909, 15672)]