21418586

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11503}}^1$

素因数の和:11538

約数の個数: 24

約数和(自身を含む): 39343680

約数和(自身を除く): 17925094

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 11503, 23006, 80521, 161042, 218557, 437114, 563647, 1127294, 1529899, 3059798, 10709293, 21418586]

約数ペア:

[(1, 21418586), (2, 10709293), (7, 3059798), (14, 1529899), (19, 1127294), (38, 563647), (49, 437114), (98, 218557), (133, 161042), (266, 80521), (931, 23006), (1862, 11503)]