21907900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{263}}^1$

素因数の和:308

約数の個数: 108

約数和(自身を含む): 58777488

約数和(自身を除く): 36869588

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 49, 50, 68, 70, 85, 98, 100, 119, 140, 170, 175, 196, 238, 245, 263, 340, 350, 425, 476, 490, 526, 595, 700, 833, 850, 980, 1052, 1190, 1225, 1315, 1666, 1700, 1841, 2380, 2450, 2630, 2975, 3332, 3682, 4165, 4471, 4900, 5260, 5950, 6575, 7364, 8330, 8942, 9205, 11900, 12887, 13150, 16660, 17884, 18410, 20825, 22355, 25774, 26300, 31297, 36820, 41650, 44710, 46025, 51548, 62594, 64435, 83300, 89420, 92050, 111775, 125188, 128870, 156485, 184100, 219079, 223550, 257740, 312970, 322175, 438158, 447100, 625940, 644350, 782425, 876316, 1095395, 1288700, 1564850, 2190790, 3129700, 4381580, 5476975, 10953950, 21907900]

約数ペア:

[(1, 21907900), (2, 10953950), (4, 5476975), (5, 4381580), (7, 3129700), (10, 2190790), (14, 1564850), (17, 1288700), (20, 1095395), (25, 876316), (28, 782425), (34, 644350), (35, 625940), (49, 447100), (50, 438158), (68, 322175), (70, 312970), (85, 257740), (98, 223550), (100, 219079), (119, 184100), (140, 156485), (170, 128870), (175, 125188), (196, 111775), (238, 92050), (245, 89420), (263, 83300), (340, 64435), (350, 62594), (425, 51548), (476, 46025), (490, 44710), (526, 41650), (595, 36820), (700, 31297), (833, 26300), (850, 25774), (980, 22355), (1052, 20825), (1190, 18410), (1225, 17884), (1315, 16660), (1666, 13150), (1700, 12887), (1841, 11900), (2380, 9205), (2450, 8942), (2630, 8330), (2975, 7364), (3332, 6575), (3682, 5950), (4165, 5260), (4471, 4900)]