21053536

素因数分解:

$2^5\times 7^2\times {\mathrm{29}}^1\times {\mathrm{463}}^1$

素因数の和:516

約数の個数: 72

約数和(自身を含む): 49986720

約数和(自身を除く): 28933184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 49, 56, 58, 98, 112, 116, 196, 203, 224, 232, 392, 406, 463, 464, 784, 812, 926, 928, 1421, 1568, 1624, 1852, 2842, 3241, 3248, 3704, 5684, 6482, 6496, 7408, 11368, 12964, 13427, 14816, 22687, 22736, 25928, 26854, 45374, 45472, 51856, 53708, 90748, 93989, 103712, 107416, 181496, 187978, 214832, 362992, 375956, 429664, 657923, 725984, 751912, 1315846, 1503824, 2631692, 3007648, 5263384, 10526768, 21053536]

約数ペア:

[(1, 21053536), (2, 10526768), (4, 5263384), (7, 3007648), (8, 2631692), (14, 1503824), (16, 1315846), (28, 751912), (29, 725984), (32, 657923), (49, 429664), (56, 375956), (58, 362992), (98, 214832), (112, 187978), (116, 181496), (196, 107416), (203, 103712), (224, 93989), (232, 90748), (392, 53708), (406, 51856), (463, 45472), (464, 45374), (784, 26854), (812, 25928), (926, 22736), (928, 22687), (1421, 14816), (1568, 13427), (1624, 12964), (1852, 11368), (2842, 7408), (3241, 6496), (3248, 6482), (3704, 5684)]