21490890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{42139}}^1$

素因数の和:42166

約数の個数: 32

約数和(自身を含む): 54613440

約数和(自身を除く): 33122550

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 42139, 84278, 126417, 210695, 252834, 421390, 632085, 716363, 1264170, 1432726, 2149089, 3581815, 4298178, 7163630, 10745445, 21490890]

約数ペア:

[(1, 21490890), (2, 10745445), (3, 7163630), (5, 4298178), (6, 3581815), (10, 2149089), (15, 1432726), (17, 1264170), (30, 716363), (34, 632085), (51, 421390), (85, 252834), (102, 210695), (170, 126417), (255, 84278), (510, 42139)]