18984472

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{659}}^1$

素因数の和:955

約数の個数: 32

約数和(自身を含む): 38530800

約数和(自身を除く): 19546328

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 277, 554, 659, 1108, 1318, 2216, 2636, 3601, 5272, 7202, 8567, 14404, 17134, 28808, 34268, 68536, 182543, 365086, 730172, 1460344, 2373059, 4746118, 9492236, 18984472]

約数ペア:

[(1, 18984472), (2, 9492236), (4, 4746118), (8, 2373059), (13, 1460344), (26, 730172), (52, 365086), (104, 182543), (277, 68536), (554, 34268), (659, 28808), (1108, 17134), (1318, 14404), (2216, 8567), (2636, 7202), (3601, 5272)]