19930456

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3911}}^1$

素因数の和:3944

約数の個数: 48

約数和(自身を含む): 46826640

約数和(自身を除く): 26896184

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 3911, 5096, 7822, 15644, 27377, 31288, 50843, 54754, 101686, 109508, 191639, 203372, 219016, 355901, 383278, 406744, 711802, 766556, 1423604, 1533112, 2491307, 2847208, 4982614, 9965228, 19930456]

約数ペア:

[(1, 19930456), (2, 9965228), (4, 4982614), (7, 2847208), (8, 2491307), (13, 1533112), (14, 1423604), (26, 766556), (28, 711802), (49, 406744), (52, 383278), (56, 355901), (91, 219016), (98, 203372), (104, 191639), (182, 109508), (196, 101686), (364, 54754), (392, 50843), (637, 31288), (728, 27377), (1274, 15644), (2548, 7822), (3911, 5096)]