21993516

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{11527}}^1$

素因数の和:11590

約数の個数: 36

約数和(自身を含む): 56648592

約数和(自身を除く): 34655076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 954, 1908, 11527, 23054, 34581, 46108, 69162, 103743, 138324, 207486, 414972, 610931, 1221862, 1832793, 2443724, 3665586, 5498379, 7331172, 10996758, 21993516]

約数ペア:

[(1, 21993516), (2, 10996758), (3, 7331172), (4, 5498379), (6, 3665586), (9, 2443724), (12, 1832793), (18, 1221862), (36, 610931), (53, 414972), (106, 207486), (159, 138324), (212, 103743), (318, 69162), (477, 46108), (636, 34581), (954, 23054), (1908, 11527)]