21217384

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{307}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 40914720

約数和(自身を除く): 19697336

約数列:

[1, 2, 4, 8, 53, 106, 163, 212, 307, 326, 424, 614, 652, 1228, 1304, 2456, 8639, 16271, 17278, 32542, 34556, 50041, 65084, 69112, 100082, 130168, 200164, 400328, 2652173, 5304346, 10608692, 21217384]

約数ペア:

[(1, 21217384), (2, 10608692), (4, 5304346), (8, 2652173), (53, 400328), (106, 200164), (163, 130168), (212, 100082), (307, 69112), (326, 65084), (424, 50041), (614, 34556), (652, 32542), (1228, 17278), (1304, 16271), (2456, 8639)]