20703358

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 14677442

約数列:

[1, 2, 13, 23, 26, 46, 89, 178, 299, 389, 598, 778, 1157, 2047, 2314, 4094, 5057, 8947, 10114, 17894, 26611, 34621, 53222, 69242, 116311, 232622, 450073, 796283, 900146, 1592566, 10351679, 20703358]

約数ペア:

[(1, 20703358), (2, 10351679), (13, 1592566), (23, 900146), (26, 796283), (46, 450073), (89, 232622), (178, 116311), (299, 69242), (389, 53222), (598, 34621), (778, 26611), (1157, 17894), (2047, 10114), (2314, 8947), (4094, 5057)]