72723987

素因数分解:

$3^4\times 7^2\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:350

約数の個数: 60

約数和(自身を含む): 128615256

約数和(自身を除く): 55891269

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 73, 81, 147, 189, 219, 251, 441, 511, 567, 657, 753, 1323, 1533, 1757, 1971, 2259, 3577, 3969, 4599, 5271, 5913, 6777, 10731, 12299, 13797, 15813, 18323, 20331, 32193, 36897, 41391, 47439, 54969, 96579, 110691, 128261, 142317, 164907, 289737, 332073, 384783, 494721, 897827, 996219, 1154349, 1484163, 2693481, 3463047, 8080443, 10389141, 24241329, 72723987]

約数ペア:

[(1, 72723987), (3, 24241329), (7, 10389141), (9, 8080443), (21, 3463047), (27, 2693481), (49, 1484163), (63, 1154349), (73, 996219), (81, 897827), (147, 494721), (189, 384783), (219, 332073), (251, 289737), (441, 164907), (511, 142317), (567, 128261), (657, 110691), (753, 96579), (1323, 54969), (1533, 47439), (1757, 41391), (1971, 36897), (2259, 32193), (3577, 20331), (3969, 18323), (4599, 15813), (5271, 13797), (5913, 12299), (6777, 10731)]