19197928

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 37440000

約数和(自身を除く): 18242072

約数列:

[1, 2, 4, 8, 31, 62, 124, 199, 248, 389, 398, 778, 796, 1556, 1592, 3112, 6169, 12059, 12338, 24118, 24676, 48236, 49352, 77411, 96472, 154822, 309644, 619288, 2399741, 4799482, 9598964, 19197928]

約数ペア:

[(1, 19197928), (2, 9598964), (4, 4799482), (8, 2399741), (31, 619288), (62, 309644), (124, 154822), (199, 96472), (248, 77411), (389, 49352), (398, 48236), (778, 24676), (796, 24118), (1556, 12338), (1592, 12059), (3112, 6169)]