21711550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 96

約数和(自身を含む): 50621760

約数和(自身を除く): 28910210

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 41, 50, 70, 82, 85, 89, 119, 170, 175, 178, 205, 238, 287, 350, 410, 425, 445, 574, 595, 623, 697, 850, 890, 1025, 1190, 1246, 1394, 1435, 1513, 2050, 2225, 2870, 2975, 3026, 3115, 3485, 3649, 4450, 4879, 5950, 6230, 6970, 7175, 7298, 7565, 9758, 10591, 14350, 15130, 15575, 17425, 18245, 21182, 24395, 25543, 31150, 34850, 36490, 37825, 48790, 51086, 52955, 62033, 75650, 91225, 105910, 121975, 124066, 127715, 182450, 243950, 255430, 264775, 310165, 434231, 529550, 620330, 638575, 868462, 1277150, 1550825, 2171155, 3101650, 4342310, 10855775, 21711550]

約数ペア:

[(1, 21711550), (2, 10855775), (5, 4342310), (7, 3101650), (10, 2171155), (14, 1550825), (17, 1277150), (25, 868462), (34, 638575), (35, 620330), (41, 529550), (50, 434231), (70, 310165), (82, 264775), (85, 255430), (89, 243950), (119, 182450), (170, 127715), (175, 124066), (178, 121975), (205, 105910), (238, 91225), (287, 75650), (350, 62033), (410, 52955), (425, 51086), (445, 48790), (574, 37825), (595, 36490), (623, 34850), (697, 31150), (850, 25543), (890, 24395), (1025, 21182), (1190, 18245), (1246, 17425), (1394, 15575), (1435, 15130), (1513, 14350), (2050, 10591), (2225, 9758), (2870, 7565), (2975, 7298), (3026, 7175), (3115, 6970), (3485, 6230), (3649, 5950), (4450, 4879)]