20833715

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 29736960

約数和(自身を除く): 8903245

約数列:

[1, 5, 7, 35, 43, 109, 127, 215, 301, 545, 635, 763, 889, 1505, 3815, 4445, 4687, 5461, 13843, 23435, 27305, 32809, 38227, 69215, 96901, 164045, 191135, 484505, 595249, 2976245, 4166743, 20833715]

約数ペア:

[(1, 20833715), (5, 4166743), (7, 2976245), (35, 595249), (43, 484505), (109, 191135), (127, 164045), (215, 96901), (301, 69215), (545, 38227), (635, 32809), (763, 27305), (889, 23435), (1505, 13843), (3815, 5461), (4445, 4687)]