20822739

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 34894848

約数和(自身を除く): 14072109

約数列:

[1, 3, 7, 17, 21, 47, 51, 73, 119, 141, 219, 289, 329, 357, 511, 799, 867, 987, 1241, 1533, 2023, 2397, 3431, 3723, 5593, 6069, 8687, 10293, 13583, 16779, 21097, 24017, 26061, 40749, 58327, 63291, 72051, 95081, 147679, 174981, 285243, 408289, 443037, 991559, 1224867, 2974677, 6940913, 20822739]

約数ペア:

[(1, 20822739), (3, 6940913), (7, 2974677), (17, 1224867), (21, 991559), (47, 443037), (51, 408289), (73, 285243), (119, 174981), (141, 147679), (219, 95081), (289, 72051), (329, 63291), (357, 58327), (511, 40749), (799, 26061), (867, 24017), (987, 21097), (1241, 16779), (1533, 13583), (2023, 10293), (2397, 8687), (3431, 6069), (3723, 5593)]