19810154

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1223}}^1$

素因数の和:1334

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 17203606

約数列:

[1, 2, 7, 13, 14, 26, 89, 91, 178, 182, 623, 1157, 1223, 1246, 2314, 2446, 8099, 8561, 15899, 16198, 17122, 31798, 108847, 111293, 217694, 222586, 761929, 1415011, 1523858, 2830022, 9905077, 19810154]

約数ペア:

[(1, 19810154), (2, 9905077), (7, 2830022), (13, 1523858), (14, 1415011), (26, 761929), (89, 222586), (91, 217694), (178, 111293), (182, 108847), (623, 31798), (1157, 17122), (1223, 16198), (1246, 15899), (2314, 8561), (2446, 8099)]