21900501

素因数分解:

$3^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{937}}^1$

素因数の和:1010

約数の個数: 36

約数和(自身を含む): 37533132

約数和(自身を除く): 15632631

約数列:

[1, 3, 7, 9, 21, 49, 53, 63, 147, 159, 371, 441, 477, 937, 1113, 2597, 2811, 3339, 6559, 7791, 8433, 19677, 23373, 45913, 49661, 59031, 137739, 148983, 347627, 413217, 446949, 1042881, 2433389, 3128643, 7300167, 21900501]

約数ペア:

[(1, 21900501), (3, 7300167), (7, 3128643), (9, 2433389), (21, 1042881), (49, 446949), (53, 413217), (63, 347627), (147, 148983), (159, 137739), (371, 59031), (441, 49661), (477, 45913), (937, 23373), (1113, 19677), (2597, 8433), (2811, 7791), (3339, 6559)]