21581490

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{102769}}^1$

素因数の和:102786

約数の個数: 32

約数和(自身を含む): 59195520

約数和(自身を除く): 37614030

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 102769, 205538, 308307, 513845, 616614, 719383, 1027690, 1438766, 1541535, 2158149, 3083070, 3596915, 4316298, 7193830, 10790745, 21581490]

約数ペア:

[(1, 21581490), (2, 10790745), (3, 7193830), (5, 4316298), (6, 3596915), (7, 3083070), (10, 2158149), (14, 1541535), (15, 1438766), (21, 1027690), (30, 719383), (35, 616614), (42, 513845), (70, 308307), (105, 205538), (210, 102769)]