21490095

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{937}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 37820160

約数和(自身を除く): 16330065

約数列:

[1, 3, 5, 11, 15, 33, 55, 139, 165, 417, 695, 937, 1529, 2085, 2811, 4587, 4685, 7645, 10307, 14055, 22935, 30921, 51535, 130243, 154605, 390729, 651215, 1432673, 1953645, 4298019, 7163365, 21490095]

約数ペア:

[(1, 21490095), (3, 7163365), (5, 4298019), (11, 1953645), (15, 1432673), (33, 651215), (55, 390729), (139, 154605), (165, 130243), (417, 51535), (695, 30921), (937, 22935), (1529, 14055), (2085, 10307), (2811, 7645), (4587, 4685)]