21365764

素因数分解:

$2^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1627}}^1$

素因数の和:1712

約数の個数: 36

約数和(自身を含む): 44170896

約数和(自身を除く): 22805132

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 134, 196, 268, 469, 938, 1627, 1876, 3254, 3283, 6508, 6566, 11389, 13132, 22778, 45556, 79723, 109009, 159446, 218018, 318892, 436036, 763063, 1526126, 3052252, 5341441, 10682882, 21365764]

約数ペア:

[(1, 21365764), (2, 10682882), (4, 5341441), (7, 3052252), (14, 1526126), (28, 763063), (49, 436036), (67, 318892), (98, 218018), (134, 159446), (196, 109009), (268, 79723), (469, 45556), (938, 22778), (1627, 13132), (1876, 11389), (3254, 6566), (3283, 6508)]