19984365

素因数分解:

$3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4397}}^1$

素因数の和:4509

約数の個数: 24

約数和(自身を含む): 34990488

約数和(自身を除く): 15006123

約数列:

[1, 3, 5, 9, 15, 45, 101, 303, 505, 909, 1515, 4397, 4545, 13191, 21985, 39573, 65955, 197865, 444097, 1332291, 2220485, 3996873, 6661455, 19984365]

約数ペア:

[(1, 19984365), (3, 6661455), (5, 3996873), (9, 2220485), (15, 1332291), (45, 444097), (101, 197865), (303, 65955), (505, 39573), (909, 21985), (1515, 13191), (4397, 4545)]