21540216

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 56033280

約数和(自身を除く): 34493064

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 74, 111, 127, 148, 191, 222, 254, 296, 381, 382, 444, 508, 573, 762, 764, 888, 1016, 1146, 1524, 1528, 2292, 3048, 4584, 4699, 7067, 9398, 14097, 14134, 18796, 21201, 24257, 28194, 28268, 37592, 42402, 48514, 56388, 56536, 72771, 84804, 97028, 112776, 145542, 169608, 194056, 291084, 582168, 897509, 1795018, 2692527, 3590036, 5385054, 7180072, 10770108, 21540216]

約数ペア:

[(1, 21540216), (2, 10770108), (3, 7180072), (4, 5385054), (6, 3590036), (8, 2692527), (12, 1795018), (24, 897509), (37, 582168), (74, 291084), (111, 194056), (127, 169608), (148, 145542), (191, 112776), (222, 97028), (254, 84804), (296, 72771), (381, 56536), (382, 56388), (444, 48514), (508, 42402), (573, 37592), (762, 28268), (764, 28194), (888, 24257), (1016, 21201), (1146, 18796), (1524, 14134), (1528, 14097), (2292, 9398), (3048, 7067), (4584, 4699)]