211701825

素因数分解:

$3^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{12889}}^1$

素因数の和:12978

約数の個数: 36

約数和(自身を含む): 384405580

約数和(自身を除く): 172703755

約数列:

[1, 3, 5, 9, 15, 25, 45, 73, 75, 219, 225, 365, 657, 1095, 1825, 3285, 5475, 12889, 16425, 38667, 64445, 116001, 193335, 322225, 580005, 940897, 966675, 2822691, 2900025, 4704485, 8468073, 14113455, 23522425, 42340365, 70567275, 211701825]

約数ペア:

[(1, 211701825), (3, 70567275), (5, 42340365), (9, 23522425), (15, 14113455), (25, 8468073), (45, 4704485), (73, 2900025), (75, 2822691), (219, 966675), (225, 940897), (365, 580005), (657, 322225), (1095, 193335), (1825, 116001), (3285, 64445), (5475, 38667), (12889, 16425)]