18813876

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 47877984

約数和(自身を除く): 29064108

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 43, 57, 76, 86, 101, 114, 129, 172, 202, 228, 258, 303, 361, 404, 516, 606, 722, 817, 1083, 1212, 1444, 1634, 1919, 2166, 2451, 3268, 3838, 4332, 4343, 4902, 5757, 7676, 8686, 9804, 11514, 13029, 15523, 17372, 23028, 26058, 31046, 36461, 46569, 52116, 62092, 72922, 82517, 93138, 109383, 145844, 165034, 186276, 218766, 247551, 330068, 437532, 495102, 990204, 1567823, 3135646, 4703469, 6271292, 9406938, 18813876]

約数ペア:

[(1, 18813876), (2, 9406938), (3, 6271292), (4, 4703469), (6, 3135646), (12, 1567823), (19, 990204), (38, 495102), (43, 437532), (57, 330068), (76, 247551), (86, 218766), (101, 186276), (114, 165034), (129, 145844), (172, 109383), (202, 93138), (228, 82517), (258, 72922), (303, 62092), (361, 52116), (404, 46569), (516, 36461), (606, 31046), (722, 26058), (817, 23028), (1083, 17372), (1212, 15523), (1444, 13029), (1634, 11514), (1919, 9804), (2166, 8686), (2451, 7676), (3268, 5757), (3838, 4902), (4332, 4343)]