21175154

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1511}}^1$

素因数の和:1551

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 22261582

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 77, 91, 98, 143, 154, 182, 286, 539, 637, 1001, 1078, 1274, 1511, 2002, 3022, 7007, 10577, 14014, 16621, 19643, 21154, 33242, 39286, 74039, 116347, 137501, 148078, 216073, 232694, 275002, 432146, 814429, 962507, 1512511, 1628858, 1925014, 3025022, 10587577, 21175154]

約数ペア:

[(1, 21175154), (2, 10587577), (7, 3025022), (11, 1925014), (13, 1628858), (14, 1512511), (22, 962507), (26, 814429), (49, 432146), (77, 275002), (91, 232694), (98, 216073), (143, 148078), (154, 137501), (182, 116347), (286, 74039), (539, 39286), (637, 33242), (1001, 21154), (1078, 19643), (1274, 16621), (1511, 14014), (2002, 10577), (3022, 7007)]