21768510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 32974530

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 89, 93, 155, 178, 186, 263, 267, 310, 445, 465, 526, 534, 789, 890, 930, 1315, 1335, 1578, 2630, 2670, 2759, 3945, 5518, 7890, 8153, 8277, 13795, 16306, 16554, 23407, 24459, 27590, 40765, 41385, 46814, 48918, 70221, 81530, 82770, 117035, 122295, 140442, 234070, 244590, 351105, 702210, 725617, 1451234, 2176851, 3628085, 4353702, 7256170, 10884255, 21768510]

約数ペア:

[(1, 21768510), (2, 10884255), (3, 7256170), (5, 4353702), (6, 3628085), (10, 2176851), (15, 1451234), (30, 725617), (31, 702210), (62, 351105), (89, 244590), (93, 234070), (155, 140442), (178, 122295), (186, 117035), (263, 82770), (267, 81530), (310, 70221), (445, 48918), (465, 46814), (526, 41385), (534, 40765), (789, 27590), (890, 24459), (930, 23407), (1315, 16554), (1335, 16306), (1578, 13795), (2630, 8277), (2670, 8153), (2759, 7890), (3945, 5518)]