20169772

素因数分解:

$2^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:327

約数の個数: 48

約数和(自身を含む): 42011200

約数和(自身を除く): 21841428

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 241, 244, 343, 427, 482, 686, 854, 964, 1372, 1687, 1708, 2989, 3374, 5978, 6748, 11809, 11956, 14701, 20923, 23618, 29402, 41846, 47236, 58804, 82663, 83692, 102907, 165326, 205814, 330652, 411628, 720349, 1440698, 2881396, 5042443, 10084886, 20169772]

約数ペア:

[(1, 20169772), (2, 10084886), (4, 5042443), (7, 2881396), (14, 1440698), (28, 720349), (49, 411628), (61, 330652), (98, 205814), (122, 165326), (196, 102907), (241, 83692), (244, 82663), (343, 58804), (427, 47236), (482, 41846), (686, 29402), (854, 23618), (964, 20923), (1372, 14701), (1687, 11956), (1708, 11809), (2989, 6748), (3374, 5978)]