20799618

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{269}}^1$

素因数の和:551

約数の個数: 48

約数和(自身を含む): 48755520

約数和(自身を除く): 27955902

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 263, 269, 294, 526, 538, 789, 807, 1578, 1614, 1841, 1883, 3682, 3766, 5523, 5649, 11046, 11298, 12887, 13181, 25774, 26362, 38661, 39543, 70747, 77322, 79086, 141494, 212241, 424482, 495229, 990458, 1485687, 2971374, 3466603, 6933206, 10399809, 20799618]

約数ペア:

[(1, 20799618), (2, 10399809), (3, 6933206), (6, 3466603), (7, 2971374), (14, 1485687), (21, 990458), (42, 495229), (49, 424482), (98, 212241), (147, 141494), (263, 79086), (269, 77322), (294, 70747), (526, 39543), (538, 38661), (789, 26362), (807, 25774), (1578, 13181), (1614, 12887), (1841, 11298), (1883, 11046), (3682, 5649), (3766, 5523)]