18884943

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 36812880

約数和(自身を除く): 17927937

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 49, 51, 63, 77, 99, 119, 147, 153, 187, 229, 231, 357, 441, 539, 561, 687, 693, 833, 1071, 1309, 1603, 1617, 1683, 2061, 2499, 2519, 3893, 3927, 4809, 4851, 7497, 7557, 9163, 11221, 11679, 11781, 14427, 17633, 22671, 27251, 27489, 33663, 35037, 42823, 52899, 81753, 82467, 100989, 123431, 128469, 158697, 190757, 245259, 299761, 370293, 385407, 572271, 899283, 1110879, 1716813, 2098327, 2697849, 6294981, 18884943]

約数ペア:

[(1, 18884943), (3, 6294981), (7, 2697849), (9, 2098327), (11, 1716813), (17, 1110879), (21, 899283), (33, 572271), (49, 385407), (51, 370293), (63, 299761), (77, 245259), (99, 190757), (119, 158697), (147, 128469), (153, 123431), (187, 100989), (229, 82467), (231, 81753), (357, 52899), (441, 42823), (539, 35037), (561, 33663), (687, 27489), (693, 27251), (833, 22671), (1071, 17633), (1309, 14427), (1603, 11781), (1617, 11679), (1683, 11221), (2061, 9163), (2499, 7557), (2519, 7497), (3893, 4851), (3927, 4809)]