21878544

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 59107328

約数和(自身を除く): 37228784

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 97, 111, 127, 148, 194, 222, 254, 291, 296, 381, 388, 444, 508, 582, 592, 762, 776, 888, 1016, 1164, 1524, 1552, 1776, 2032, 2328, 3048, 3589, 4656, 4699, 6096, 7178, 9398, 10767, 12319, 14097, 14356, 18796, 21534, 24638, 28194, 28712, 36957, 37592, 43068, 49276, 56388, 57424, 73914, 75184, 86136, 98552, 112776, 147828, 172272, 197104, 225552, 295656, 455803, 591312, 911606, 1367409, 1823212, 2734818, 3646424, 5469636, 7292848, 10939272, 21878544]

約数ペア:

[(1, 21878544), (2, 10939272), (3, 7292848), (4, 5469636), (6, 3646424), (8, 2734818), (12, 1823212), (16, 1367409), (24, 911606), (37, 591312), (48, 455803), (74, 295656), (97, 225552), (111, 197104), (127, 172272), (148, 147828), (194, 112776), (222, 98552), (254, 86136), (291, 75184), (296, 73914), (381, 57424), (388, 56388), (444, 49276), (508, 43068), (582, 37592), (592, 36957), (762, 28712), (776, 28194), (888, 24638), (1016, 21534), (1164, 18796), (1524, 14356), (1552, 14097), (1776, 12319), (2032, 10767), (2328, 9398), (3048, 7178), (3589, 6096), (4656, 4699)]