19919866

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{4639}}^1$

素因数の和:4773

約数の個数: 16

約数和(自身を含む): 31737600

約数和(自身を除く): 11817734

約数列:

[1, 2, 19, 38, 113, 226, 2147, 4294, 4639, 9278, 88141, 176282, 524207, 1048414, 9959933, 19919866]

約数ペア:

[(1, 19919866), (2, 9959933), (19, 1048414), (38, 524207), (113, 176282), (226, 88141), (2147, 9278), (4294, 4639)]