19097728

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 42840000

約数和(自身を除く): 23742272

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 128, 184, 208, 299, 368, 416, 499, 598, 736, 832, 998, 1196, 1472, 1664, 1996, 2392, 2944, 3992, 4784, 6487, 7984, 9568, 11477, 12974, 15968, 19136, 22954, 25948, 31936, 38272, 45908, 51896, 63872, 91816, 103792, 149201, 183632, 207584, 298402, 367264, 415168, 596804, 734528, 830336, 1193608, 1469056, 2387216, 4774432, 9548864, 19097728]

約数ペア:

[(1, 19097728), (2, 9548864), (4, 4774432), (8, 2387216), (13, 1469056), (16, 1193608), (23, 830336), (26, 734528), (32, 596804), (46, 415168), (52, 367264), (64, 298402), (92, 207584), (104, 183632), (128, 149201), (184, 103792), (208, 91816), (299, 63872), (368, 51896), (416, 45908), (499, 38272), (598, 31936), (736, 25948), (832, 22954), (998, 19136), (1196, 15968), (1472, 12974), (1664, 11477), (1996, 9568), (2392, 7984), (2944, 6487), (3992, 4784)]