21125536

素因数分解:

$2^5\times {\mathrm{509}}^1\times {\mathrm{1297}}^1$

素因数の和:1816

約数の個数: 24

約数和(自身を含む): 41704740

約数和(自身を除く): 20579204

約数列:

[1, 2, 4, 8, 16, 32, 509, 1018, 1297, 2036, 2594, 4072, 5188, 8144, 10376, 16288, 20752, 41504, 660173, 1320346, 2640692, 5281384, 10562768, 21125536]

約数ペア:

[(1, 21125536), (2, 10562768), (4, 5281384), (8, 2640692), (16, 1320346), (32, 660173), (509, 41504), (1018, 20752), (1297, 16288), (2036, 10376), (2594, 8144), (4072, 5188)]