39981716

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{1831}}^1$

素因数の和:1991

約数の個数: 24

約数和(自身を含む): 72019584

約数和(自身を除く): 32037868

約数列:

[1, 2, 4, 53, 103, 106, 206, 212, 412, 1831, 3662, 5459, 7324, 10918, 21836, 97043, 188593, 194086, 377186, 388172, 754372, 9995429, 19990858, 39981716]

約数ペア:

[(1, 39981716), (2, 19990858), (4, 9995429), (53, 754372), (103, 388172), (106, 377186), (206, 194086), (212, 188593), (412, 97043), (1831, 21836), (3662, 10918), (5459, 7324)]