21185668

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{491}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 44964864

約数和(自身を除く): 23779196

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 67, 92, 134, 161, 268, 322, 469, 491, 644, 938, 982, 1541, 1876, 1964, 3082, 3437, 6164, 6874, 10787, 11293, 13748, 21574, 22586, 32897, 43148, 45172, 65794, 79051, 131588, 158102, 230279, 316204, 460558, 756631, 921116, 1513262, 3026524, 5296417, 10592834, 21185668]

約数ペア:

[(1, 21185668), (2, 10592834), (4, 5296417), (7, 3026524), (14, 1513262), (23, 921116), (28, 756631), (46, 460558), (67, 316204), (92, 230279), (134, 158102), (161, 131588), (268, 79051), (322, 65794), (469, 45172), (491, 43148), (644, 32897), (938, 22586), (982, 21574), (1541, 13748), (1876, 11293), (1964, 10787), (3082, 6874), (3437, 6164)]