21976615

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 7053785

約数列:

[1, 5, 23, 41, 59, 79, 115, 205, 295, 395, 943, 1357, 1817, 2419, 3239, 4661, 4715, 6785, 9085, 12095, 16195, 23305, 55637, 74497, 107203, 191101, 278185, 372485, 536015, 955505, 4395323, 21976615]

約数ペア:

[(1, 21976615), (5, 4395323), (23, 955505), (41, 536015), (59, 372485), (79, 278185), (115, 191101), (205, 107203), (295, 74497), (395, 55637), (943, 23305), (1357, 16195), (1817, 12095), (2419, 9085), (3239, 6785), (4661, 4715)]