21368260

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{3079}}^1$

素因数の和:3435

約数の個数: 24

約数和(自身を含む): 45017280

約数和(自身を除く): 23649020

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 3079, 3470, 6158, 6940, 12316, 15395, 30790, 61580, 1068413, 2136826, 4273652, 5342065, 10684130, 21368260]

約数ペア:

[(1, 21368260), (2, 10684130), (4, 5342065), (5, 4273652), (10, 2136826), (20, 1068413), (347, 61580), (694, 30790), (1388, 15395), (1735, 12316), (3079, 6940), (3470, 6158)]