18493972

素因数分解:

$2^2\times 7^2\times {\mathrm{157}}^1\times {\mathrm{601}}^1$

素因数の和:776

約数の個数: 36

約数和(自身を含む): 37951284

約数和(自身を除く): 19457312

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 157, 196, 314, 601, 628, 1099, 1202, 2198, 2404, 4207, 4396, 7693, 8414, 15386, 16828, 29449, 30772, 58898, 94357, 117796, 188714, 377428, 660499, 1320998, 2641996, 4623493, 9246986, 18493972]

約数ペア:

[(1, 18493972), (2, 9246986), (4, 4623493), (7, 2641996), (14, 1320998), (28, 660499), (49, 377428), (98, 188714), (157, 117796), (196, 94357), (314, 58898), (601, 30772), (628, 29449), (1099, 16828), (1202, 15386), (2198, 8414), (2404, 7693), (4207, 4396)]