21173166

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{853}}^1$

素因数の和:1065

約数の個数: 48

約数和(自身を含む): 52756704

約数和(自身を除く): 31583538

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 197, 394, 591, 853, 1182, 1379, 1706, 1773, 2559, 2758, 3546, 4137, 5118, 5971, 7677, 8274, 11942, 12411, 15354, 17913, 24822, 35826, 53739, 107478, 168041, 336082, 504123, 1008246, 1176287, 1512369, 2352574, 3024738, 3528861, 7057722, 10586583, 21173166]

約数ペア:

[(1, 21173166), (2, 10586583), (3, 7057722), (6, 3528861), (7, 3024738), (9, 2352574), (14, 1512369), (18, 1176287), (21, 1008246), (42, 504123), (63, 336082), (126, 168041), (197, 107478), (394, 53739), (591, 35826), (853, 24822), (1182, 17913), (1379, 15354), (1706, 12411), (1773, 11942), (2559, 8274), (2758, 7677), (3546, 5971), (4137, 5118)]