21431790

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{26459}}^1$

素因数の和:26478

約数の個数: 40

約数和(自身を含む): 57629880

約数和(自身を除く): 36198090

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 26459, 52918, 79377, 132295, 158754, 238131, 264590, 396885, 476262, 714393, 793770, 1190655, 1428786, 2143179, 2381310, 3571965, 4286358, 7143930, 10715895, 21431790]

約数ペア:

[(1, 21431790), (2, 10715895), (3, 7143930), (5, 4286358), (6, 3571965), (9, 2381310), (10, 2143179), (15, 1428786), (18, 1190655), (27, 793770), (30, 714393), (45, 476262), (54, 396885), (81, 264590), (90, 238131), (135, 158754), (162, 132295), (270, 79377), (405, 52918), (810, 26459)]