21317072

素因数分解:

$2^4\times 7^1\times {\mathrm{190331}}^1$

素因数の和:190346

約数の個数: 20

約数和(自身を含む): 47202336

約数和(自身を除く): 25885264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190331, 380662, 761324, 1332317, 1522648, 2664634, 3045296, 5329268, 10658536, 21317072]

約数ペア:

[(1, 21317072), (2, 10658536), (4, 5329268), (7, 3045296), (8, 2664634), (14, 1522648), (16, 1332317), (28, 761324), (56, 380662), (112, 190331)]