21456784

素因数分解:

$2^4\times {\mathrm{461}}^1\times {\mathrm{2909}}^1$

素因数の和:3378

約数の個数: 20

約数和(自身を含む): 41677020

約数和(自身を除く): 20220236

約数列:

[1, 2, 4, 8, 16, 461, 922, 1844, 2909, 3688, 5818, 7376, 11636, 23272, 46544, 1341049, 2682098, 5364196, 10728392, 21456784]

約数ペア:

[(1, 21456784), (2, 10728392), (4, 5364196), (8, 2682098), (16, 1341049), (461, 46544), (922, 23272), (1844, 11636), (2909, 7376), (3688, 5818)]