21615464

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10939}}^1$

素因数の和:10977

約数の個数: 32

約数和(自身を含む): 45948000

約数和(自身を除く): 24332536

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10939, 21878, 43756, 87512, 142207, 207841, 284414, 415682, 568828, 831364, 1137656, 1662728, 2701933, 5403866, 10807732, 21615464]

約数ペア:

[(1, 21615464), (2, 10807732), (4, 5403866), (8, 2701933), (13, 1662728), (19, 1137656), (26, 831364), (38, 568828), (52, 415682), (76, 284414), (104, 207841), (152, 142207), (247, 87512), (494, 43756), (988, 21878), (1976, 10939)]