19935783

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4723}}^1$

素因数の和:4803

約数の個数: 24

約数和(自身を含む): 33408128

約数和(自身を除く): 13472345

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 4723, 14169, 33061, 42507, 99183, 297549, 316441, 949323, 2215087, 2847969, 6645261, 19935783]

約数ペア:

[(1, 19935783), (3, 6645261), (7, 2847969), (9, 2215087), (21, 949323), (63, 316441), (67, 297549), (201, 99183), (469, 42507), (603, 33061), (1407, 14169), (4221, 4723)]