21454872890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2749}}^1\times {\mathrm{70951}}^1$

素因数の和:73718

約数の個数: 32

約数和(自身を含む): 42145488000

約数和(自身を除く): 20690615110

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 2749, 5498, 13745, 27490, 30239, 60478, 70951, 141902, 151195, 302390, 354755, 709510, 780461, 1560922, 3902305, 7804610, 195044299, 390088598, 975221495, 1950442990, 2145487289, 4290974578, 10727436445, 21454872890]

約数ペア:

[(1, 21454872890), (2, 10727436445), (5, 4290974578), (10, 2145487289), (11, 1950442990), (22, 975221495), (55, 390088598), (110, 195044299), (2749, 7804610), (5498, 3902305), (13745, 1560922), (27490, 780461), (30239, 709510), (60478, 354755), (70951, 302390), (141902, 151195)]