21212854

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1867}}^1$

素因数の和:1924

約数の個数: 32

約数和(自身を含む): 37658880

約数和(自身を除く): 16446026

約数列:

[1, 2, 13, 19, 23, 26, 38, 46, 247, 299, 437, 494, 598, 874, 1867, 3734, 5681, 11362, 24271, 35473, 42941, 48542, 70946, 85882, 461149, 558233, 815879, 922298, 1116466, 1631758, 10606427, 21212854]

約数ペア:

[(1, 21212854), (2, 10606427), (13, 1631758), (19, 1116466), (23, 922298), (26, 815879), (38, 558233), (46, 461149), (247, 85882), (299, 70946), (437, 48542), (494, 42941), (598, 35473), (874, 24271), (1867, 11362), (3734, 5681)]