220139997

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1249}}^1$

素因数の和:1386

約数の個数: 48

約数和(自身を含む): 376200000

約数和(自身を除く): 156060003

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 109, 147, 231, 327, 539, 763, 1199, 1249, 1617, 2289, 3597, 3747, 5341, 8393, 8743, 13739, 16023, 25179, 26229, 41217, 58751, 61201, 96173, 136141, 176253, 183603, 288519, 408423, 673211, 952987, 1497551, 2019633, 2858961, 4492653, 6670909, 10482857, 20012727, 31448571, 73379999, 220139997]

約数ペア:

[(1, 220139997), (3, 73379999), (7, 31448571), (11, 20012727), (21, 10482857), (33, 6670909), (49, 4492653), (77, 2858961), (109, 2019633), (147, 1497551), (231, 952987), (327, 673211), (539, 408423), (763, 288519), (1199, 183603), (1249, 176253), (1617, 136141), (2289, 96173), (3597, 61201), (3747, 58751), (5341, 41217), (8393, 26229), (8743, 25179), (13739, 16023)]