21757660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1847}}^1$

素因数の和:1906

約数の個数: 48

約数和(自身を含む): 49674240

約数和(自身を除く): 27916580

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1847, 2356, 2945, 3694, 5890, 7388, 9235, 11780, 18470, 35093, 36940, 57257, 70186, 114514, 140372, 175465, 229028, 286285, 350930, 572570, 701860, 1087883, 1145140, 2175766, 4351532, 5439415, 10878830, 21757660]

約数ペア:

[(1, 21757660), (2, 10878830), (4, 5439415), (5, 4351532), (10, 2175766), (19, 1145140), (20, 1087883), (31, 701860), (38, 572570), (62, 350930), (76, 286285), (95, 229028), (124, 175465), (155, 140372), (190, 114514), (310, 70186), (380, 57257), (589, 36940), (620, 35093), (1178, 18470), (1847, 11780), (2356, 9235), (2945, 7388), (3694, 5890)]