20895890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1217}}^1$

素因数の和:1342

約数の個数: 32

約数和(自身を含む): 40252464

約数和(自身を除く): 19356574

約数列:

[1, 2, 5, 10, 17, 34, 85, 101, 170, 202, 505, 1010, 1217, 1717, 2434, 3434, 6085, 8585, 12170, 17170, 20689, 41378, 103445, 122917, 206890, 245834, 614585, 1229170, 2089589, 4179178, 10447945, 20895890]

約数ペア:

[(1, 20895890), (2, 10447945), (5, 4179178), (10, 2089589), (17, 1229170), (34, 614585), (85, 245834), (101, 206890), (170, 122917), (202, 103445), (505, 41378), (1010, 20689), (1217, 17170), (1717, 12170), (2434, 8585), (3434, 6085)]