21899915

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{1217}}^1$

素因数の和:1342

約数の個数: 16

約数和(自身を含む): 27185760

約数和(自身を除く): 5285845

約数列:

[1, 5, 59, 61, 295, 305, 1217, 3599, 6085, 17995, 71803, 74237, 359015, 371185, 4379983, 21899915]

約数ペア:

[(1, 21899915), (5, 4379983), (59, 371185), (61, 359015), (295, 74237), (305, 71803), (1217, 17995), (3599, 6085)]