20338234

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:203

約数の個数: 48

約数和(自身を含む): 37428480

約数和(自身を除く): 17090246

約数列:

[1, 2, 7, 14, 37, 49, 71, 74, 79, 98, 142, 158, 259, 497, 518, 553, 994, 1106, 1813, 2627, 2923, 3479, 3626, 3871, 5254, 5609, 5846, 6958, 7742, 11218, 18389, 20461, 36778, 39263, 40922, 78526, 128723, 143227, 207533, 257446, 274841, 286454, 415066, 549682, 1452731, 2905462, 10169117, 20338234]

約数ペア:

[(1, 20338234), (2, 10169117), (7, 2905462), (14, 1452731), (37, 549682), (49, 415066), (71, 286454), (74, 274841), (79, 257446), (98, 207533), (142, 143227), (158, 128723), (259, 78526), (497, 40922), (518, 39263), (553, 36778), (994, 20461), (1106, 18389), (1813, 11218), (2627, 7742), (2923, 6958), (3479, 5846), (3626, 5609), (3871, 5254)]