15890217

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 25546752

約数和(自身を除く): 9656535

約数列:

[1, 3, 7, 21, 23, 69, 161, 167, 197, 483, 501, 591, 1169, 1379, 3507, 3841, 4137, 4531, 11523, 13593, 26887, 31717, 32899, 80661, 95151, 98697, 230293, 690879, 756677, 2270031, 5296739, 15890217]

約数ペア:

[(1, 15890217), (3, 5296739), (7, 2270031), (21, 756677), (23, 690879), (69, 230293), (161, 98697), (167, 95151), (197, 80661), (483, 32899), (501, 31717), (591, 26887), (1169, 13593), (1379, 11523), (3507, 4531), (3841, 4137)]