15986733

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 25958400

約数和(自身を除く): 9971667

約数列:

[1, 3, 7, 19, 21, 57, 103, 133, 309, 389, 399, 721, 1167, 1957, 2163, 2723, 5871, 7391, 8169, 13699, 22173, 40067, 41097, 51737, 120201, 155211, 280469, 761273, 841407, 2283819, 5328911, 15986733]

約数ペア:

[(1, 15986733), (3, 5328911), (7, 2283819), (19, 841407), (21, 761273), (57, 280469), (103, 155211), (133, 120201), (309, 51737), (389, 41097), (399, 40067), (721, 22173), (1167, 13699), (1957, 8169), (2163, 7391), (2723, 5871)]