21165939753

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{587}}^1\times {\mathrm{41879}}^1$

素因数の和:42517

約数の個数: 32

約数和(自身を含む): 33096591360

約数和(自身を除く): 11930651607

約数列:

[1, 3, 7, 21, 41, 123, 287, 587, 861, 1761, 4109, 12327, 24067, 41879, 72201, 125637, 168469, 293153, 505407, 879459, 1717039, 5151117, 12019273, 24582973, 36057819, 73748919, 172080811, 516242433, 1007901893, 3023705679, 7055313251, 21165939753]

約数ペア:

[(1, 21165939753), (3, 7055313251), (7, 3023705679), (21, 1007901893), (41, 516242433), (123, 172080811), (287, 73748919), (587, 36057819), (861, 24582973), (1761, 12019273), (4109, 5151117), (12327, 1717039), (24067, 879459), (41879, 505407), (72201, 293153), (125637, 168469)]