21586305

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4813}}^1$

素因数の和:4857

約数の個数: 32

約数和(自身を含む): 38820096

約数和(自身を除く): 17233791

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4813, 14439, 24065, 62569, 72195, 110699, 187707, 312845, 332097, 553495, 938535, 1439087, 1660485, 4317261, 7195435, 21586305]

約数ペア:

[(1, 21586305), (3, 7195435), (5, 4317261), (13, 1660485), (15, 1439087), (23, 938535), (39, 553495), (65, 332097), (69, 312845), (115, 187707), (195, 110699), (299, 72195), (345, 62569), (897, 24065), (1495, 14439), (4485, 4813)]