21581308624

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{2389}}^1\times {\mathrm{19469}}^1$

素因数の和:21895

約数の個数: 40

約数和(自身を含む): 43275969000

約数和(自身を除く): 21694660376

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 2389, 4778, 9556, 19112, 19469, 38224, 38938, 69281, 77876, 138562, 155752, 277124, 311504, 554248, 564601, 1108496, 1129202, 2258404, 4516808, 9033616, 46511441, 93022882, 186045764, 372091528, 744183056, 1348831789, 2697663578, 5395327156, 10790654312, 21581308624]

約数ペア:

[(1, 21581308624), (2, 10790654312), (4, 5395327156), (8, 2697663578), (16, 1348831789), (29, 744183056), (58, 372091528), (116, 186045764), (232, 93022882), (464, 46511441), (2389, 9033616), (4778, 4516808), (9556, 2258404), (19112, 1129202), (19469, 1108496), (38224, 564601), (38938, 554248), (69281, 311504), (77876, 277124), (138562, 155752)]