20834968

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 28413032

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 149, 154, 227, 298, 308, 454, 596, 616, 908, 1043, 1192, 1589, 1639, 1816, 2086, 2497, 3178, 3278, 4172, 4994, 6356, 6556, 8344, 9988, 11473, 12712, 13112, 17479, 19976, 22946, 33823, 34958, 45892, 67646, 69916, 91784, 135292, 139832, 236761, 270584, 372053, 473522, 744106, 947044, 1488212, 1894088, 2604371, 2976424, 5208742, 10417484, 20834968]

約数ペア:

[(1, 20834968), (2, 10417484), (4, 5208742), (7, 2976424), (8, 2604371), (11, 1894088), (14, 1488212), (22, 947044), (28, 744106), (44, 473522), (56, 372053), (77, 270584), (88, 236761), (149, 139832), (154, 135292), (227, 91784), (298, 69916), (308, 67646), (454, 45892), (596, 34958), (616, 33823), (908, 22946), (1043, 19976), (1192, 17479), (1589, 13112), (1639, 12712), (1816, 11473), (2086, 9988), (2497, 8344), (3178, 6556), (3278, 6356), (4172, 4994)]