28157703

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 46577664

約数和(自身を除く): 18419961

約数列:

[1, 3, 7, 21, 31, 37, 49, 93, 111, 147, 167, 217, 259, 501, 651, 777, 1147, 1169, 1519, 1813, 3441, 3507, 4557, 5177, 5439, 6179, 8029, 8183, 15531, 18537, 24087, 24549, 36239, 43253, 56203, 108717, 129759, 168609, 191549, 253673, 302771, 574647, 761019, 908313, 1340843, 4022529, 9385901, 28157703]

約数ペア:

[(1, 28157703), (3, 9385901), (7, 4022529), (21, 1340843), (31, 908313), (37, 761019), (49, 574647), (93, 302771), (111, 253673), (147, 191549), (167, 168609), (217, 129759), (259, 108717), (501, 56203), (651, 43253), (777, 36239), (1147, 24549), (1169, 24087), (1519, 18537), (1813, 15531), (3441, 8183), (3507, 8029), (4557, 6179), (5177, 5439)]