21841940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{283}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 48952512

約数和(自身を除く): 27110572

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 227, 283, 340, 454, 566, 908, 1132, 1135, 1415, 2270, 2830, 3859, 4540, 4811, 5660, 7718, 9622, 15436, 19244, 19295, 24055, 38590, 48110, 64241, 77180, 96220, 128482, 256964, 321205, 642410, 1092097, 1284820, 2184194, 4368388, 5460485, 10920970, 21841940]

約数ペア:

[(1, 21841940), (2, 10920970), (4, 5460485), (5, 4368388), (10, 2184194), (17, 1284820), (20, 1092097), (34, 642410), (68, 321205), (85, 256964), (170, 128482), (227, 96220), (283, 77180), (340, 64241), (454, 48110), (566, 38590), (908, 24055), (1132, 19295), (1135, 19244), (1415, 15436), (2270, 9622), (2830, 7718), (3859, 5660), (4540, 4811)]