21891044

素因数分解:

$2^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1667}}^1$

素因数の和:1752

約数の個数: 36

約数和(自身を含む): 45256176

約数和(自身を除く): 23365132

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 134, 196, 268, 469, 938, 1667, 1876, 3283, 3334, 6566, 6668, 11669, 13132, 23338, 46676, 81683, 111689, 163366, 223378, 326732, 446756, 781823, 1563646, 3127292, 5472761, 10945522, 21891044]

約数ペア:

[(1, 21891044), (2, 10945522), (4, 5472761), (7, 3127292), (14, 1563646), (28, 781823), (49, 446756), (67, 326732), (98, 223378), (134, 163366), (196, 111689), (268, 81683), (469, 46676), (938, 23338), (1667, 13132), (1876, 11669), (3283, 6668), (3334, 6566)]