21657654

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1049}}^1$

素因数の和:1125

約数の個数: 48

約数和(自身を含む): 49795200

約数和(自身を除く): 28137546

約数列:

[1, 2, 3, 6, 9, 18, 31, 37, 62, 74, 93, 111, 186, 222, 279, 333, 558, 666, 1049, 1147, 2098, 2294, 3147, 3441, 6294, 6882, 9441, 10323, 18882, 20646, 32519, 38813, 65038, 77626, 97557, 116439, 195114, 232878, 292671, 349317, 585342, 698634, 1203203, 2406406, 3609609, 7219218, 10828827, 21657654]

約数ペア:

[(1, 21657654), (2, 10828827), (3, 7219218), (6, 3609609), (9, 2406406), (18, 1203203), (31, 698634), (37, 585342), (62, 349317), (74, 292671), (93, 232878), (111, 195114), (186, 116439), (222, 97557), (279, 77626), (333, 65038), (558, 38813), (666, 32519), (1049, 20646), (1147, 18882), (2098, 10323), (2294, 9441), (3147, 6882), (3441, 6294)]