20473857

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:502

約数の個数: 32

約数和(自身を含む): 31902720

約数和(自身を除く): 11428863

約数列:

[1, 3, 9, 27, 31, 61, 93, 183, 279, 401, 549, 837, 1203, 1647, 1891, 3609, 5673, 10827, 12431, 17019, 24461, 37293, 51057, 73383, 111879, 220149, 335637, 660447, 758291, 2274873, 6824619, 20473857]

約数ペア:

[(1, 20473857), (3, 6824619), (9, 2274873), (27, 758291), (31, 660447), (61, 335637), (93, 220149), (183, 111879), (279, 73383), (401, 51057), (549, 37293), (837, 24461), (1203, 17019), (1647, 12431), (1891, 10827), (3609, 5673)]