81719631

素因数分解:

$3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{5923}}^1$

素因数の和:6012

約数の個数: 32

約数和(自身を含む): 140280320

約数和(自身を除く): 58560689

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 189, 219, 511, 657, 1533, 1971, 4599, 5923, 13797, 17769, 41461, 53307, 124383, 159921, 373149, 432379, 1119447, 1297137, 3026653, 3891411, 9079959, 11674233, 27239877, 81719631]

約数ペア:

[(1, 81719631), (3, 27239877), (7, 11674233), (9, 9079959), (21, 3891411), (27, 3026653), (63, 1297137), (73, 1119447), (189, 432379), (219, 373149), (511, 159921), (657, 124383), (1533, 53307), (1971, 41461), (4599, 17769), (5923, 13797)]