19875294

素因数分解:

$2^1\times 3^4\times {\mathrm{79}}^1\times {\mathrm{1553}}^1$

素因数の和:1646

約数の個数: 40

約数和(自身を含む): 45128160

約数和(自身を除く): 25252866

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 81, 158, 162, 237, 474, 711, 1422, 1553, 2133, 3106, 4266, 4659, 6399, 9318, 12798, 13977, 27954, 41931, 83862, 122687, 125793, 245374, 251586, 368061, 736122, 1104183, 2208366, 3312549, 6625098, 9937647, 19875294]

約数ペア:

[(1, 19875294), (2, 9937647), (3, 6625098), (6, 3312549), (9, 2208366), (18, 1104183), (27, 736122), (54, 368061), (79, 251586), (81, 245374), (158, 125793), (162, 122687), (237, 83862), (474, 41931), (711, 27954), (1422, 13977), (1553, 12798), (2133, 9318), (3106, 6399), (4266, 4659)]