28658973

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 48445440

約数和(自身を除く): 19786467

約数列:

[1, 3, 7, 19, 21, 31, 49, 57, 93, 133, 147, 217, 331, 399, 589, 651, 931, 993, 1519, 1767, 2317, 2793, 4123, 4557, 6289, 6951, 10261, 12369, 16219, 18867, 28861, 30783, 44023, 48657, 71827, 86583, 132069, 194959, 215481, 308161, 502789, 584877, 924483, 1364713, 1508367, 4094139, 9552991, 28658973]

約数ペア:

[(1, 28658973), (3, 9552991), (7, 4094139), (19, 1508367), (21, 1364713), (31, 924483), (49, 584877), (57, 502789), (93, 308161), (133, 215481), (147, 194959), (217, 132069), (331, 86583), (399, 71827), (589, 48657), (651, 44023), (931, 30783), (993, 28861), (1519, 18867), (1767, 16219), (2317, 12369), (2793, 10261), (4123, 6951), (4557, 6289)]