28267953

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 47880000

約数和(自身を除く): 19612047

約数列:

[1, 3, 7, 19, 21, 29, 49, 57, 87, 133, 147, 203, 349, 399, 551, 609, 931, 1047, 1421, 1653, 2443, 2793, 3857, 4263, 6631, 7329, 10121, 11571, 17101, 19893, 26999, 30363, 46417, 51303, 70847, 80997, 139251, 192299, 212541, 324919, 495929, 576897, 974757, 1346093, 1487787, 4038279, 9422651, 28267953]

約数ペア:

[(1, 28267953), (3, 9422651), (7, 4038279), (19, 1487787), (21, 1346093), (29, 974757), (49, 576897), (57, 495929), (87, 324919), (133, 212541), (147, 192299), (203, 139251), (349, 80997), (399, 70847), (551, 51303), (609, 46417), (931, 30363), (1047, 26999), (1421, 19893), (1653, 17101), (2443, 11571), (2793, 10121), (3857, 7329), (4263, 6631)]