1213389723

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{521}}^1$

素因数の和:1012

約数の個数: 64

約数和(自身を含む): 2104704000

約数和(自身を除く): 891314277

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 449, 521, 741, 1347, 1563, 1729, 3143, 3647, 5187, 5837, 6773, 8531, 9429, 9899, 10941, 17511, 20319, 25593, 29697, 40859, 47411, 59717, 69293, 110903, 122577, 128687, 142233, 179151, 207879, 233929, 332709, 386061, 701787, 776321, 900809, 1637503, 2328963, 2702427, 3041077, 4444651, 4912509, 9123231, 13333953, 21287539, 31112557, 57780463, 63862617, 93337671, 173341389, 404463241, 1213389723]

約数ペア:

[(1, 1213389723), (3, 404463241), (7, 173341389), (13, 93337671), (19, 63862617), (21, 57780463), (39, 31112557), (57, 21287539), (91, 13333953), (133, 9123231), (247, 4912509), (273, 4444651), (399, 3041077), (449, 2702427), (521, 2328963), (741, 1637503), (1347, 900809), (1563, 776321), (1729, 701787), (3143, 386061), (3647, 332709), (5187, 233929), (5837, 207879), (6773, 179151), (8531, 142233), (9429, 128687), (9899, 122577), (10941, 110903), (17511, 69293), (20319, 59717), (25593, 47411), (29697, 40859)]