21489810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{15241}}^1$

素因数の和:15298

約数の個数: 32

約数和(自身を含む): 52676352

約数和(自身を除く): 31186542

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 141, 235, 282, 470, 705, 1410, 15241, 30482, 45723, 76205, 91446, 152410, 228615, 457230, 716327, 1432654, 2148981, 3581635, 4297962, 7163270, 10744905, 21489810]

約数ペア:

[(1, 21489810), (2, 10744905), (3, 7163270), (5, 4297962), (6, 3581635), (10, 2148981), (15, 1432654), (30, 716327), (47, 457230), (94, 228615), (141, 152410), (235, 91446), (282, 76205), (470, 45723), (705, 30482), (1410, 15241)]