18737914

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:574

約数の個数: 32

約数和(自身を含む): 32316480

約数和(自身を除く): 13578566

約数列:

[1, 2, 13, 19, 26, 38, 83, 166, 247, 457, 494, 914, 1079, 1577, 2158, 3154, 5941, 8683, 11882, 17366, 20501, 37931, 41002, 75862, 112879, 225758, 493103, 720689, 986206, 1441378, 9368957, 18737914]

約数ペア:

[(1, 18737914), (2, 9368957), (13, 1441378), (19, 986206), (26, 720689), (38, 493103), (83, 225758), (166, 112879), (247, 75862), (457, 41002), (494, 37931), (914, 20501), (1079, 17366), (1577, 11882), (2158, 8683), (3154, 5941)]