21287796

素因数分解:

$2^2\times 3^1\times {\mathrm{491}}^1\times {\mathrm{3613}}^1$

素因数の和:4111

約数の個数: 24

約数和(自身を含む): 49786464

約数和(自身を除く): 28498668

約数列:

[1, 2, 3, 4, 6, 12, 491, 982, 1473, 1964, 2946, 3613, 5892, 7226, 10839, 14452, 21678, 43356, 1773983, 3547966, 5321949, 7095932, 10643898, 21287796]

約数ペア:

[(1, 21287796), (2, 10643898), (3, 7095932), (4, 5321949), (6, 3547966), (12, 1773983), (491, 43356), (982, 21678), (1473, 14452), (1964, 10839), (2946, 7226), (3613, 5892)]