21887710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1667}}^1$

素因数の和:1788

約数の個数: 32

約数和(自身を含む): 42874272

約数和(自身を除く): 20986562

約数列:

[1, 2, 5, 10, 13, 26, 65, 101, 130, 202, 505, 1010, 1313, 1667, 2626, 3334, 6565, 8335, 13130, 16670, 21671, 43342, 108355, 168367, 216710, 336734, 841835, 1683670, 2188771, 4377542, 10943855, 21887710]

約数ペア:

[(1, 21887710), (2, 10943855), (5, 4377542), (10, 2188771), (13, 1683670), (26, 841835), (65, 336734), (101, 216710), (130, 168367), (202, 108355), (505, 43342), (1010, 21671), (1313, 16670), (1667, 13130), (2626, 8335), (3334, 6565)]