21910620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21481}}^1$

素因数の和:21510

約数の個数: 48

約数和(自身を含む): 64961568

約数和(自身を除く): 43050948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21481, 42962, 64443, 85924, 107405, 128886, 214810, 257772, 322215, 365177, 429620, 644430, 730354, 1095531, 1288860, 1460708, 1825885, 2191062, 3651770, 4382124, 5477655, 7303540, 10955310, 21910620]

約数ペア:

[(1, 21910620), (2, 10955310), (3, 7303540), (4, 5477655), (5, 4382124), (6, 3651770), (10, 2191062), (12, 1825885), (15, 1460708), (17, 1288860), (20, 1095531), (30, 730354), (34, 644430), (51, 429620), (60, 365177), (68, 322215), (85, 257772), (102, 214810), (170, 128886), (204, 107405), (255, 85924), (340, 64443), (510, 42962), (1020, 21481)]