21686210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23831}}^1$

素因数の和:23858

約数の個数: 32

約数和(自身を含む): 48045312

約数和(自身を除く): 26359102

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 23831, 47662, 119155, 166817, 238310, 309803, 333634, 619606, 834085, 1549015, 1668170, 2168621, 3098030, 4337242, 10843105, 21686210]

約数ペア:

[(1, 21686210), (2, 10843105), (5, 4337242), (7, 3098030), (10, 2168621), (13, 1668170), (14, 1549015), (26, 834085), (35, 619606), (65, 333634), (70, 309803), (91, 238310), (130, 166817), (182, 119155), (455, 47662), (910, 23831)]