21543284

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45259}}^1$

素因数の和:45287

約数の個数: 24

約数和(自身を含む): 45622080

約数和(自身を除く): 24078796

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 45259, 90518, 181036, 316813, 633626, 769403, 1267252, 1538806, 3077612, 5385821, 10771642, 21543284]

約数ペア:

[(1, 21543284), (2, 10771642), (4, 5385821), (7, 3077612), (14, 1538806), (17, 1267252), (28, 769403), (34, 633626), (68, 316813), (119, 181036), (238, 90518), (476, 45259)]