21176360

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{839}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 47779200

約数和(自身を除く): 26602840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 839, 1262, 1678, 2524, 3155, 3356, 4195, 5048, 6310, 6712, 8390, 12620, 16780, 25240, 33560, 529409, 1058818, 2117636, 2647045, 4235272, 5294090, 10588180, 21176360]

約数ペア:

[(1, 21176360), (2, 10588180), (4, 5294090), (5, 4235272), (8, 2647045), (10, 2117636), (20, 1058818), (40, 529409), (631, 33560), (839, 25240), (1262, 16780), (1678, 12620), (2524, 8390), (3155, 6712), (3356, 6310), (4195, 5048)]