19971846

素因数分解:

$2^1\times 3^4\times {\mathrm{113}}^1\times {\mathrm{1091}}^1$

素因数の和:1218

約数の個数: 40

約数和(自身を含む): 45189144

約数和(自身を除く): 25217298

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 113, 162, 226, 339, 678, 1017, 1091, 2034, 2182, 3051, 3273, 6102, 6546, 9153, 9819, 18306, 19638, 29457, 58914, 88371, 123283, 176742, 246566, 369849, 739698, 1109547, 2219094, 3328641, 6657282, 9985923, 19971846]

約数ペア:

[(1, 19971846), (2, 9985923), (3, 6657282), (6, 3328641), (9, 2219094), (18, 1109547), (27, 739698), (54, 369849), (81, 246566), (113, 176742), (162, 123283), (226, 88371), (339, 58914), (678, 29457), (1017, 19638), (1091, 18306), (2034, 9819), (2182, 9153), (3051, 6546), (3273, 6102)]