21619724

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{569}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 24345076

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 59, 92, 118, 161, 236, 322, 413, 569, 644, 826, 1138, 1357, 1652, 2276, 2714, 3983, 5428, 7966, 9499, 13087, 15932, 18998, 26174, 33571, 37996, 52348, 67142, 91609, 134284, 183218, 234997, 366436, 469994, 772133, 939988, 1544266, 3088532, 5404931, 10809862, 21619724]

約数ペア:

[(1, 21619724), (2, 10809862), (4, 5404931), (7, 3088532), (14, 1544266), (23, 939988), (28, 772133), (46, 469994), (59, 366436), (92, 234997), (118, 183218), (161, 134284), (236, 91609), (322, 67142), (413, 52348), (569, 37996), (644, 33571), (826, 26174), (1138, 18998), (1357, 15932), (1652, 13087), (2276, 9499), (2714, 7966), (3983, 5428)]