400291227

素因数分解:

$3^5\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1693}}^1$

素因数の和:1854

約数の個数: 48

約数和(自身を含む): 690609920

約数和(自身を除く): 290318693

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 139, 189, 243, 417, 567, 973, 1251, 1693, 1701, 2919, 3753, 5079, 8757, 11259, 11851, 15237, 26271, 33777, 35553, 45711, 78813, 106659, 137133, 235327, 236439, 319977, 411399, 705981, 959931, 1647289, 2117943, 2879793, 4941867, 6353829, 14825601, 19061487, 44476803, 57184461, 133430409, 400291227]

約数ペア:

[(1, 400291227), (3, 133430409), (7, 57184461), (9, 44476803), (21, 19061487), (27, 14825601), (63, 6353829), (81, 4941867), (139, 2879793), (189, 2117943), (243, 1647289), (417, 959931), (567, 705981), (973, 411399), (1251, 319977), (1693, 236439), (1701, 235327), (2919, 137133), (3753, 106659), (5079, 78813), (8757, 45711), (11259, 35553), (11851, 33777), (15237, 26271)]