213885581

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{727}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 272982528

約数和(自身を除く): 59096947

約数列:

[1, 7, 13, 53, 61, 91, 371, 427, 689, 727, 793, 3233, 4823, 5089, 5551, 9451, 22631, 38531, 42029, 44347, 66157, 269717, 294203, 310429, 500903, 576511, 2350391, 3506321, 4035577, 16452737, 30555083, 213885581]

約数ペア:

[(1, 213885581), (7, 30555083), (13, 16452737), (53, 4035577), (61, 3506321), (91, 2350391), (371, 576511), (427, 500903), (689, 310429), (727, 294203), (793, 269717), (3233, 66157), (4823, 44347), (5089, 42029), (5551, 38531), (9451, 22631)]