21115691084

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{563}}^1\times {\mathrm{769}}^1$

素因数の和:1562

約数の個数: 48

約数和(自身を含む): 37756303200

約数和(自身を除く): 16640612116

約数列:

[1, 2, 4, 89, 137, 178, 274, 356, 548, 563, 769, 1126, 1538, 2252, 3076, 12193, 24386, 48772, 50107, 68441, 77131, 100214, 105353, 136882, 154262, 200428, 210706, 273764, 308524, 421412, 432947, 865894, 1731788, 6864659, 9376417, 13729318, 18752834, 27458636, 37505668, 38532283, 59313739, 77064566, 118627478, 154129132, 237254956, 5278922771, 10557845542, 21115691084]

約数ペア:

[(1, 21115691084), (2, 10557845542), (4, 5278922771), (89, 237254956), (137, 154129132), (178, 118627478), (274, 77064566), (356, 59313739), (548, 38532283), (563, 37505668), (769, 27458636), (1126, 18752834), (1538, 13729318), (2252, 9376417), (3076, 6864659), (12193, 1731788), (24386, 865894), (48772, 432947), (50107, 421412), (68441, 308524), (77131, 273764), (100214, 210706), (105353, 200428), (136882, 154262)]