21012172

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{4133}}^1$

素因数の和:4209

約数の個数: 24

約数和(自身を含む): 38892672

約数和(自身を除く): 17880500

約数列:

[1, 2, 4, 31, 41, 62, 82, 124, 164, 1271, 2542, 4133, 5084, 8266, 16532, 128123, 169453, 256246, 338906, 512492, 677812, 5253043, 10506086, 21012172]

約数ペア:

[(1, 21012172), (2, 10506086), (4, 5253043), (31, 677812), (41, 512492), (62, 338906), (82, 256246), (124, 169453), (164, 128123), (1271, 16532), (2542, 8266), (4133, 5084)]