21887895

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{751}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 36817920

約数和(自身を除く): 14930025

約数列:

[1, 3, 5, 15, 29, 67, 87, 145, 201, 335, 435, 751, 1005, 1943, 2253, 3755, 5829, 9715, 11265, 21779, 29145, 50317, 65337, 108895, 150951, 251585, 326685, 754755, 1459193, 4377579, 7295965, 21887895]

約数ペア:

[(1, 21887895), (3, 7295965), (5, 4377579), (15, 1459193), (29, 754755), (67, 326685), (87, 251585), (145, 150951), (201, 108895), (335, 65337), (435, 50317), (751, 29145), (1005, 21779), (1943, 11265), (2253, 9715), (3755, 5829)]