21454335721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{139}}^1\times {\mathrm{1009}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 27286806400

約数和(自身を除く): 5832470679

約数列:

[1, 7, 13, 41, 91, 139, 287, 533, 973, 1009, 1681, 1807, 3731, 5699, 7063, 11767, 12649, 13117, 21853, 39893, 41369, 74087, 91819, 140251, 152971, 233659, 289583, 518609, 537797, 981757, 1635613, 1696129, 1823263, 3037567, 3764579, 5750291, 11872903, 12762841, 21262969, 22049677, 40252037, 74753783, 154347739, 235761931, 523276481, 1650333517, 3064905103, 21454335721]

約数ペア:

[(1, 21454335721), (7, 3064905103), (13, 1650333517), (41, 523276481), (91, 235761931), (139, 154347739), (287, 74753783), (533, 40252037), (973, 22049677), (1009, 21262969), (1681, 12762841), (1807, 11872903), (3731, 5750291), (5699, 3764579), (7063, 3037567), (11767, 1823263), (12649, 1696129), (13117, 1635613), (21853, 981757), (39893, 537797), (41369, 518609), (74087, 289583), (91819, 233659), (140251, 152971)]