21447010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{457}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 43973496

約数和(自身を除く): 22526486

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 361, 457, 494, 722, 914, 1235, 1805, 2285, 2470, 3610, 4570, 4693, 5941, 8683, 9386, 11882, 17366, 23465, 29705, 43415, 46930, 59410, 86830, 112879, 164977, 225758, 329954, 564395, 824885, 1128790, 1649770, 2144701, 4289402, 10723505, 21447010]

約数ペア:

[(1, 21447010), (2, 10723505), (5, 4289402), (10, 2144701), (13, 1649770), (19, 1128790), (26, 824885), (38, 564395), (65, 329954), (95, 225758), (130, 164977), (190, 112879), (247, 86830), (361, 59410), (457, 46930), (494, 43415), (722, 29705), (914, 23465), (1235, 17366), (1805, 11882), (2285, 9386), (2470, 8683), (3610, 5941), (4570, 4693)]