21483651

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 34410496

約数和(自身を除く): 12926845

約数列:

[1, 3, 7, 21, 31, 61, 93, 183, 217, 427, 541, 651, 1281, 1623, 1891, 3787, 5673, 11361, 13237, 16771, 33001, 39711, 50313, 99003, 117397, 231007, 352191, 693021, 1023031, 3069093, 7161217, 21483651]

約数ペア:

[(1, 21483651), (3, 7161217), (7, 3069093), (21, 1023031), (31, 693021), (61, 352191), (93, 231007), (183, 117397), (217, 99003), (427, 50313), (541, 39711), (651, 33001), (1281, 16771), (1623, 13237), (1891, 11361), (3787, 5673)]