21856302

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 55351296

約数和(自身を除く): 33494994

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 31, 39, 46, 62, 69, 78, 93, 117, 131, 138, 186, 207, 234, 262, 279, 299, 393, 403, 414, 558, 598, 713, 786, 806, 897, 1179, 1209, 1426, 1703, 1794, 2139, 2358, 2418, 2691, 3013, 3406, 3627, 4061, 4278, 5109, 5382, 6026, 6417, 7254, 8122, 9039, 9269, 10218, 12183, 12834, 15327, 18078, 18538, 24366, 27117, 27807, 30654, 36549, 39169, 52793, 54234, 55614, 73098, 78338, 83421, 93403, 105586, 117507, 158379, 166842, 186806, 235014, 280209, 316758, 352521, 475137, 560418, 705042, 840627, 950274, 1214239, 1681254, 2428478, 3642717, 7285434, 10928151, 21856302]

約数ペア:

[(1, 21856302), (2, 10928151), (3, 7285434), (6, 3642717), (9, 2428478), (13, 1681254), (18, 1214239), (23, 950274), (26, 840627), (31, 705042), (39, 560418), (46, 475137), (62, 352521), (69, 316758), (78, 280209), (93, 235014), (117, 186806), (131, 166842), (138, 158379), (186, 117507), (207, 105586), (234, 93403), (262, 83421), (279, 78338), (299, 73098), (393, 55614), (403, 54234), (414, 52793), (558, 39169), (598, 36549), (713, 30654), (786, 27807), (806, 27117), (897, 24366), (1179, 18538), (1209, 18078), (1426, 15327), (1703, 12834), (1794, 12183), (2139, 10218), (2358, 9269), (2418, 9039), (2691, 8122), (3013, 7254), (3406, 6417), (3627, 6026), (4061, 5382), (4278, 5109)]