18405424

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:613

約数の個数: 40

約数和(自身を含む): 38086848

約数和(自身を除く): 19681424

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 157, 272, 314, 431, 628, 862, 1256, 1724, 2512, 2669, 3448, 5338, 6896, 7327, 10676, 14654, 21352, 29308, 42704, 58616, 67667, 117232, 135334, 270668, 541336, 1082672, 1150339, 2300678, 4601356, 9202712, 18405424]

約数ペア:

[(1, 18405424), (2, 9202712), (4, 4601356), (8, 2300678), (16, 1150339), (17, 1082672), (34, 541336), (68, 270668), (136, 135334), (157, 117232), (272, 67667), (314, 58616), (431, 42704), (628, 29308), (862, 21352), (1256, 14654), (1724, 10676), (2512, 7327), (2669, 6896), (3448, 5338)]