19759691

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:323

約数の個数: 24

約数和(自身を含む): 24377760

約数和(自身を除く): 4618069

約数列:

[1, 7, 23, 49, 89, 161, 197, 623, 1127, 1379, 2047, 4361, 4531, 9653, 14329, 17533, 31717, 100303, 122731, 222019, 403259, 859117, 2822813, 19759691]

約数ペア:

[(1, 19759691), (7, 2822813), (23, 859117), (49, 403259), (89, 222019), (161, 122731), (197, 100303), (623, 31717), (1127, 17533), (1379, 14329), (2047, 9653), (4361, 4531)]