21882368

素因数分解:

$2^9\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:638

約数の個数: 40

約数和(自身を含む): 44357280

約数和(自身を除く): 22474912

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 256, 316, 512, 541, 632, 1082, 1264, 2164, 2528, 4328, 5056, 8656, 10112, 17312, 20224, 34624, 40448, 42739, 69248, 85478, 138496, 170956, 276992, 341912, 683824, 1367648, 2735296, 5470592, 10941184, 21882368]

約数ペア:

[(1, 21882368), (2, 10941184), (4, 5470592), (8, 2735296), (16, 1367648), (32, 683824), (64, 341912), (79, 276992), (128, 170956), (158, 138496), (256, 85478), (316, 69248), (512, 42739), (541, 40448), (632, 34624), (1082, 20224), (1264, 17312), (2164, 10112), (2528, 8656), (4328, 5056)]