21638628

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1031}}^1$

素因数の和:1105

約数の個数: 72

約数和(自身を含む): 60854976

約数和(自身を除く): 39216348

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 53, 66, 99, 106, 132, 159, 198, 212, 318, 396, 477, 583, 636, 954, 1031, 1166, 1749, 1908, 2062, 2332, 3093, 3498, 4124, 5247, 6186, 6996, 9279, 10494, 11341, 12372, 18558, 20988, 22682, 34023, 37116, 45364, 54643, 68046, 102069, 109286, 136092, 163929, 204138, 218572, 327858, 408276, 491787, 601073, 655716, 983574, 1202146, 1803219, 1967148, 2404292, 3606438, 5409657, 7212876, 10819314, 21638628]

約数ペア:

[(1, 21638628), (2, 10819314), (3, 7212876), (4, 5409657), (6, 3606438), (9, 2404292), (11, 1967148), (12, 1803219), (18, 1202146), (22, 983574), (33, 655716), (36, 601073), (44, 491787), (53, 408276), (66, 327858), (99, 218572), (106, 204138), (132, 163929), (159, 136092), (198, 109286), (212, 102069), (318, 68046), (396, 54643), (477, 45364), (583, 37116), (636, 34023), (954, 22682), (1031, 20988), (1166, 18558), (1749, 12372), (1908, 11341), (2062, 10494), (2332, 9279), (3093, 6996), (3498, 6186), (4124, 5247)]