128311227

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1523}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 216822528

約数和(自身を除く): 88511301

約数列:

[1, 3, 9, 11, 23, 33, 37, 69, 99, 111, 207, 253, 333, 407, 759, 851, 1221, 1523, 2277, 2553, 3663, 4569, 7659, 9361, 13707, 16753, 28083, 35029, 50259, 56351, 84249, 105087, 150777, 169053, 315261, 385319, 507159, 619861, 1155957, 1296073, 1859583, 3467871, 3888219, 5578749, 11664657, 14256803, 42770409, 128311227]

約数ペア:

[(1, 128311227), (3, 42770409), (9, 14256803), (11, 11664657), (23, 5578749), (33, 3888219), (37, 3467871), (69, 1859583), (99, 1296073), (111, 1155957), (207, 619861), (253, 507159), (333, 385319), (407, 315261), (759, 169053), (851, 150777), (1221, 105087), (1523, 84249), (2277, 56351), (2553, 50259), (3663, 35029), (4569, 28083), (7659, 16753), (9361, 13707)]