19928584

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191621}}^1$

素因数の和:191640

約数の個数: 16

約数和(自身を含む): 40240620

約数和(自身を除く): 20312036

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191621, 383242, 766484, 1532968, 2491073, 4982146, 9964292, 19928584]

約数ペア:

[(1, 19928584), (2, 9964292), (4, 4982146), (8, 2491073), (13, 1532968), (26, 766484), (52, 383242), (104, 191621)]