15991905

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 26812800

約数和(自身を除く): 10820895

約数列:

[1, 3, 5, 15, 29, 87, 97, 145, 291, 379, 435, 485, 1137, 1455, 1895, 2813, 5685, 8439, 10991, 14065, 32973, 36763, 42195, 54955, 110289, 164865, 183815, 551445, 1066127, 3198381, 5330635, 15991905]

約数ペア:

[(1, 15991905), (3, 5330635), (5, 3198381), (15, 1066127), (29, 551445), (87, 183815), (97, 164865), (145, 110289), (291, 54955), (379, 42195), (435, 36763), (485, 32973), (1137, 14065), (1455, 10991), (1895, 8439), (2813, 5685)]