21986236

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{881}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 40896576

約数和(自身を除く): 18910340

約数列:

[1, 2, 4, 17, 34, 68, 367, 734, 881, 1468, 1762, 3524, 6239, 12478, 14977, 24956, 29954, 59908, 323327, 646654, 1293308, 5496559, 10993118, 21986236]

約数ペア:

[(1, 21986236), (2, 10993118), (4, 5496559), (17, 1293308), (34, 646654), (68, 323327), (367, 59908), (734, 29954), (881, 24956), (1468, 14977), (1762, 12478), (3524, 6239)]