18750196

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 33556040

約数和(自身を除く): 14805844

約数列:

[1, 2, 4, 73, 146, 157, 292, 314, 409, 628, 818, 1636, 11461, 22922, 29857, 45844, 59714, 64213, 119428, 128426, 256852, 4687549, 9375098, 18750196]

約数ペア:

[(1, 18750196), (2, 9375098), (4, 4687549), (73, 256852), (146, 128426), (157, 119428), (292, 64213), (314, 59714), (409, 45844), (628, 29857), (818, 22922), (1636, 11461)]