21102770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{599}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 41126400

約数和(自身を除く): 20023630

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 271, 542, 599, 1198, 1355, 2710, 2995, 3523, 5990, 7046, 7787, 15574, 17615, 35230, 38935, 77870, 162329, 324658, 811645, 1623290, 2110277, 4220554, 10551385, 21102770]

約数ペア:

[(1, 21102770), (2, 10551385), (5, 4220554), (10, 2110277), (13, 1623290), (26, 811645), (65, 324658), (130, 162329), (271, 77870), (542, 38935), (599, 35230), (1198, 17615), (1355, 15574), (2710, 7787), (2995, 7046), (3523, 5990)]