20956428

素因数分解:

$2^2\times 3^3\times {\mathrm{61}}^1\times {\mathrm{3181}}^1$

素因数の和:3255

約数の個数: 48

約数和(自身を含む): 55239520

約数和(自身を除く): 34283092

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 61, 108, 122, 183, 244, 366, 549, 732, 1098, 1647, 2196, 3181, 3294, 6362, 6588, 9543, 12724, 19086, 28629, 38172, 57258, 85887, 114516, 171774, 194041, 343548, 388082, 582123, 776164, 1164246, 1746369, 2328492, 3492738, 5239107, 6985476, 10478214, 20956428]

約数ペア:

[(1, 20956428), (2, 10478214), (3, 6985476), (4, 5239107), (6, 3492738), (9, 2328492), (12, 1746369), (18, 1164246), (27, 776164), (36, 582123), (54, 388082), (61, 343548), (108, 194041), (122, 171774), (183, 114516), (244, 85887), (366, 57258), (549, 38172), (732, 28629), (1098, 19086), (1647, 12724), (2196, 9543), (3181, 6588), (3294, 6362)]