21175542

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{277}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 47878272

約数和(自身を除く): 26702730

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 137, 186, 274, 277, 279, 411, 554, 558, 822, 831, 1233, 1662, 2466, 2493, 4247, 4986, 8494, 8587, 12741, 17174, 25482, 25761, 37949, 38223, 51522, 75898, 76446, 77283, 113847, 154566, 227694, 341541, 683082, 1176419, 2352838, 3529257, 7058514, 10587771, 21175542]

約数ペア:

[(1, 21175542), (2, 10587771), (3, 7058514), (6, 3529257), (9, 2352838), (18, 1176419), (31, 683082), (62, 341541), (93, 227694), (137, 154566), (186, 113847), (274, 77283), (277, 76446), (279, 75898), (411, 51522), (554, 38223), (558, 37949), (822, 25761), (831, 25482), (1233, 17174), (1662, 12741), (2466, 8587), (2493, 8494), (4247, 4986)]