21596224

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:383

約数の個数: 56

約数和(自身を含む): 46789848

約数和(自身を除く): 25193624

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 101, 104, 202, 208, 257, 404, 416, 514, 808, 832, 1028, 1313, 1616, 2056, 2626, 3232, 3341, 4112, 5252, 6464, 6682, 8224, 10504, 13364, 16448, 21008, 25957, 26728, 42016, 51914, 53456, 84032, 103828, 106912, 207656, 213824, 337441, 415312, 674882, 830624, 1349764, 1661248, 2699528, 5399056, 10798112, 21596224]

約数ペア:

[(1, 21596224), (2, 10798112), (4, 5399056), (8, 2699528), (13, 1661248), (16, 1349764), (26, 830624), (32, 674882), (52, 415312), (64, 337441), (101, 213824), (104, 207656), (202, 106912), (208, 103828), (257, 84032), (404, 53456), (416, 51914), (514, 42016), (808, 26728), (832, 25957), (1028, 21008), (1313, 16448), (1616, 13364), (2056, 10504), (2626, 8224), (3232, 6682), (3341, 6464), (4112, 5252)]