21561712

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{4663}}^1$

素因数の和:4705

約数の個数: 30

約数和(自身を含む): 44387288

約数和(自身を除く): 22825576

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 289, 578, 1156, 2312, 4624, 4663, 9326, 18652, 37304, 74608, 79271, 158542, 317084, 634168, 1268336, 1347607, 2695214, 5390428, 10780856, 21561712]

約数ペア:

[(1, 21561712), (2, 10780856), (4, 5390428), (8, 2695214), (16, 1347607), (17, 1268336), (34, 634168), (68, 317084), (136, 158542), (272, 79271), (289, 74608), (578, 37304), (1156, 18652), (2312, 9326), (4624, 4663)]