21374985

素因数分解:

$3^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{2833}}^1$

素因数の和:3344

約数の個数: 16

約数和(自身を含む): 34280064

約数和(自身を除く): 12905079

約数列:

[1, 3, 5, 15, 503, 1509, 2515, 2833, 7545, 8499, 14165, 42495, 1424999, 4274997, 7124995, 21374985]

約数ペア:

[(1, 21374985), (3, 7124995), (5, 4274997), (15, 1424999), (503, 42495), (1509, 14165), (2515, 8499), (2833, 7545)]