19730991

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 11718609

約数列:

[1, 3, 7, 21, 29, 87, 179, 181, 203, 537, 543, 609, 1253, 1267, 3759, 3801, 5191, 5249, 15573, 15747, 32399, 36337, 36743, 97197, 109011, 110229, 226793, 680379, 939571, 2818713, 6576997, 19730991]

約数ペア:

[(1, 19730991), (3, 6576997), (7, 2818713), (21, 939571), (29, 680379), (87, 226793), (179, 110229), (181, 109011), (203, 97197), (537, 36743), (543, 36337), (609, 32399), (1253, 15747), (1267, 15573), (3759, 5249), (3801, 5191)]