258783417

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:635

約数の個数: 40

約数和(自身を含む): 398661120

約数和(自身を除く): 139877703

約数列:

[1, 3, 9, 27, 43, 81, 129, 191, 387, 389, 573, 1161, 1167, 1719, 3483, 3501, 5157, 8213, 10503, 15471, 16727, 24639, 31509, 50181, 73917, 74299, 150543, 221751, 222897, 451629, 665253, 668691, 1354887, 2006073, 3194857, 6018219, 9584571, 28753713, 86261139, 258783417]

約数ペア:

[(1, 258783417), (3, 86261139), (9, 28753713), (27, 9584571), (43, 6018219), (81, 3194857), (129, 2006073), (191, 1354887), (387, 668691), (389, 665253), (573, 451629), (1161, 222897), (1167, 221751), (1719, 150543), (3483, 74299), (3501, 73917), (5157, 50181), (8213, 31509), (10503, 24639), (15471, 16727)]