21031428045

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{60960661}}^1$

素因数の和:60960692

約数の個数: 16

約数和(自身を含む): 35113341312

約数和(自身を除く): 14081913267

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 60960661, 182881983, 304803305, 914409915, 1402095203, 4206285609, 7010476015, 21031428045]

約数ペア:

[(1, 21031428045), (3, 7010476015), (5, 4206285609), (15, 1402095203), (23, 914409915), (69, 304803305), (115, 182881983), (345, 60960661)]