21880173

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{367}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 35610624

約数和(自身を除く): 13730451

約数列:

[1, 3, 7, 17, 21, 51, 119, 167, 357, 367, 501, 1101, 1169, 2569, 2839, 3507, 6239, 7707, 8517, 18717, 19873, 43673, 59619, 61289, 131019, 183867, 429023, 1041913, 1287069, 3125739, 7293391, 21880173]

約数ペア:

[(1, 21880173), (3, 7293391), (7, 3125739), (17, 1287069), (21, 1041913), (51, 429023), (119, 183867), (167, 131019), (357, 61289), (367, 59619), (501, 43673), (1101, 19873), (1169, 18717), (2569, 8517), (2839, 7707), (3507, 6239)]