18257408

素因数分解:

$2^9\times {\mathrm{13}}^2\times {\mathrm{211}}^1$

素因数の和:255

約数の個数: 60

約数和(自身を含む): 39688308

約数和(自身を除く): 21430900

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 211, 256, 338, 416, 422, 512, 676, 832, 844, 1352, 1664, 1688, 2704, 2743, 3328, 3376, 5408, 5486, 6656, 6752, 10816, 10972, 13504, 21632, 21944, 27008, 35659, 43264, 43888, 54016, 71318, 86528, 87776, 108032, 142636, 175552, 285272, 351104, 570544, 702208, 1141088, 1404416, 2282176, 4564352, 9128704, 18257408]

約数ペア:

[(1, 18257408), (2, 9128704), (4, 4564352), (8, 2282176), (13, 1404416), (16, 1141088), (26, 702208), (32, 570544), (52, 351104), (64, 285272), (104, 175552), (128, 142636), (169, 108032), (208, 87776), (211, 86528), (256, 71318), (338, 54016), (416, 43888), (422, 43264), (512, 35659), (676, 27008), (832, 21944), (844, 21632), (1352, 13504), (1664, 10972), (1688, 10816), (2704, 6752), (2743, 6656), (3328, 5486), (3376, 5408)]