21322680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1297}}^1$

素因数の和:1448

約数の個数: 64

約数和(自身を含む): 64484640

約数和(自身を除く): 43161960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 137, 274, 411, 548, 685, 822, 1096, 1297, 1370, 1644, 2055, 2594, 2740, 3288, 3891, 4110, 5188, 5480, 6485, 7782, 8220, 10376, 12970, 15564, 16440, 19455, 25940, 31128, 38910, 51880, 77820, 155640, 177689, 355378, 533067, 710756, 888445, 1066134, 1421512, 1776890, 2132268, 2665335, 3553780, 4264536, 5330670, 7107560, 10661340, 21322680]

約数ペア:

[(1, 21322680), (2, 10661340), (3, 7107560), (4, 5330670), (5, 4264536), (6, 3553780), (8, 2665335), (10, 2132268), (12, 1776890), (15, 1421512), (20, 1066134), (24, 888445), (30, 710756), (40, 533067), (60, 355378), (120, 177689), (137, 155640), (274, 77820), (411, 51880), (548, 38910), (685, 31128), (822, 25940), (1096, 19455), (1297, 16440), (1370, 15564), (1644, 12970), (2055, 10376), (2594, 8220), (2740, 7782), (3288, 6485), (3891, 5480), (4110, 5188)]