19818424

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 38678400

約数和(自身を除く): 18859976

約数列:

[1, 2, 4, 8, 31, 62, 124, 157, 248, 314, 509, 628, 1018, 1256, 2036, 4072, 4867, 9734, 15779, 19468, 31558, 38936, 63116, 79913, 126232, 159826, 319652, 639304, 2477303, 4954606, 9909212, 19818424]

約数ペア:

[(1, 19818424), (2, 9909212), (4, 4954606), (8, 2477303), (31, 639304), (62, 319652), (124, 159826), (157, 126232), (248, 79913), (314, 63116), (509, 38936), (628, 31558), (1018, 19468), (1256, 15779), (2036, 9734), (4072, 4867)]