388173681

素因数分解:

$3^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{7309}}^1$

素因数の和:7606

約数の個数: 32

約数和(自身を含む): 659654400

約数和(自身を除く): 271480719

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 281, 843, 1967, 2529, 5901, 7309, 7587, 17703, 21927, 51163, 53109, 65781, 153489, 197343, 460467, 1381401, 2053829, 6161487, 14376803, 18484461, 43130409, 55453383, 129391227, 388173681]

約数ペア:

[(1, 388173681), (3, 129391227), (7, 55453383), (9, 43130409), (21, 18484461), (27, 14376803), (63, 6161487), (189, 2053829), (281, 1381401), (843, 460467), (1967, 197343), (2529, 153489), (5901, 65781), (7309, 53109), (7587, 51163), (17703, 21927)]