21106617

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 34007040

約数和(自身を除く): 12900423

約数列:

[1, 3, 7, 21, 23, 69, 89, 161, 267, 483, 491, 623, 1473, 1869, 2047, 3437, 6141, 10311, 11293, 14329, 33879, 42987, 43699, 79051, 131097, 237153, 305893, 917679, 1005077, 3015231, 7035539, 21106617]

約数ペア:

[(1, 21106617), (3, 7035539), (7, 3015231), (21, 1005077), (23, 917679), (69, 305893), (89, 237153), (161, 131097), (267, 79051), (483, 43699), (491, 42987), (623, 33879), (1473, 14329), (1869, 11293), (2047, 10311), (3437, 6141)]