21451638

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{7433}}^1$

素因数の和:7488

約数の個数: 32

約数和(自身を含む): 47458656

約数和(自身を除く): 26007018

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 222, 481, 962, 1443, 2886, 7433, 14866, 22299, 44598, 96629, 193258, 275021, 289887, 550042, 579774, 825063, 1650126, 3575273, 7150546, 10725819, 21451638]

約数ペア:

[(1, 21451638), (2, 10725819), (3, 7150546), (6, 3575273), (13, 1650126), (26, 825063), (37, 579774), (39, 550042), (74, 289887), (78, 275021), (111, 193258), (222, 96629), (481, 44598), (962, 22299), (1443, 14866), (2886, 7433)]