20541976

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 50274000

約数和(自身を除く): 29732024

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 29, 49, 52, 56, 58, 91, 98, 104, 116, 139, 182, 196, 203, 232, 278, 364, 377, 392, 406, 556, 637, 728, 754, 812, 973, 1112, 1274, 1421, 1508, 1624, 1807, 1946, 2548, 2639, 2842, 3016, 3614, 3892, 4031, 5096, 5278, 5684, 6811, 7228, 7784, 8062, 10556, 11368, 12649, 13622, 14456, 16124, 18473, 21112, 25298, 27244, 28217, 32248, 36946, 50596, 52403, 54488, 56434, 73892, 88543, 101192, 104806, 112868, 147784, 177086, 197519, 209612, 225736, 354172, 366821, 395038, 419224, 708344, 733642, 790076, 1467284, 1580152, 2567747, 2934568, 5135494, 10270988, 20541976]

約数ペア:

[(1, 20541976), (2, 10270988), (4, 5135494), (7, 2934568), (8, 2567747), (13, 1580152), (14, 1467284), (26, 790076), (28, 733642), (29, 708344), (49, 419224), (52, 395038), (56, 366821), (58, 354172), (91, 225736), (98, 209612), (104, 197519), (116, 177086), (139, 147784), (182, 112868), (196, 104806), (203, 101192), (232, 88543), (278, 73892), (364, 56434), (377, 54488), (392, 52403), (406, 50596), (556, 36946), (637, 32248), (728, 28217), (754, 27244), (812, 25298), (973, 21112), (1112, 18473), (1274, 16124), (1421, 14456), (1508, 13622), (1624, 12649), (1807, 11368), (1946, 10556), (2548, 8062), (2639, 7784), (2842, 7228), (3016, 6811), (3614, 5684), (3892, 5278), (4031, 5096)]