20965425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21503}}^1$

素因数の和:21529

約数の個数: 24

約数和(自身を含む): 37330944

約数和(自身を除く): 16365519

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 21503, 64509, 107515, 279539, 322545, 537575, 838617, 1397695, 1612725, 4193085, 6988475, 20965425]

約数ペア:

[(1, 20965425), (3, 6988475), (5, 4193085), (13, 1612725), (15, 1397695), (25, 838617), (39, 537575), (65, 322545), (75, 279539), (195, 107515), (325, 64509), (975, 21503)]