21000407037

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{3041}}^1$

素因数の和:3218

約数の個数: 64

約数和(自身を含む): 31455350784

約数和(自身を除く): 10454943747

約数列:

[1, 3, 17, 43, 47, 51, 67, 129, 141, 201, 731, 799, 1139, 2021, 2193, 2397, 2881, 3041, 3149, 3417, 6063, 8643, 9123, 9447, 34357, 48977, 51697, 53533, 103071, 130763, 135407, 142927, 146931, 155091, 160599, 203747, 392289, 406221, 428781, 611241, 2222971, 2301919, 2429759, 3463699, 6145861, 6668913, 6905757, 7289277, 8761121, 9576109, 10391097, 18437583, 26283363, 28728327, 104479637, 148939057, 162793853, 313438911, 411772687, 446817171, 488381559, 1235318061, 7000135679, 21000407037]

約数ペア:

[(1, 21000407037), (3, 7000135679), (17, 1235318061), (43, 488381559), (47, 446817171), (51, 411772687), (67, 313438911), (129, 162793853), (141, 148939057), (201, 104479637), (731, 28728327), (799, 26283363), (1139, 18437583), (2021, 10391097), (2193, 9576109), (2397, 8761121), (2881, 7289277), (3041, 6905757), (3149, 6668913), (3417, 6145861), (6063, 3463699), (8643, 2429759), (9123, 2301919), (9447, 2222971), (34357, 611241), (48977, 428781), (51697, 406221), (53533, 392289), (103071, 203747), (130763, 160599), (135407, 155091), (142927, 146931)]