21906136

素因数分解:

$2^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:137

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 29804264

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 41, 47, 49, 56, 58, 82, 94, 98, 116, 164, 188, 196, 203, 232, 287, 328, 329, 376, 392, 406, 574, 658, 812, 1148, 1189, 1316, 1363, 1421, 1624, 1927, 2009, 2296, 2303, 2378, 2632, 2726, 2842, 3854, 4018, 4606, 4756, 5452, 5684, 7708, 8036, 8323, 9212, 9512, 9541, 10904, 11368, 13489, 15416, 16072, 16646, 18424, 19082, 26978, 33292, 38164, 53956, 55883, 58261, 66584, 66787, 76328, 94423, 107912, 111766, 116522, 133574, 188846, 223532, 233044, 267148, 377692, 391181, 447064, 466088, 534296, 755384, 782362, 1564724, 2738267, 3129448, 5476534, 10953068, 21906136]

約数ペア:

[(1, 21906136), (2, 10953068), (4, 5476534), (7, 3129448), (8, 2738267), (14, 1564724), (28, 782362), (29, 755384), (41, 534296), (47, 466088), (49, 447064), (56, 391181), (58, 377692), (82, 267148), (94, 233044), (98, 223532), (116, 188846), (164, 133574), (188, 116522), (196, 111766), (203, 107912), (232, 94423), (287, 76328), (328, 66787), (329, 66584), (376, 58261), (392, 55883), (406, 53956), (574, 38164), (658, 33292), (812, 26978), (1148, 19082), (1189, 18424), (1316, 16646), (1363, 16072), (1421, 15416), (1624, 13489), (1927, 11368), (2009, 10904), (2296, 9541), (2303, 9512), (2378, 9212), (2632, 8323), (2726, 8036), (2842, 7708), (3854, 5684), (4018, 5452), (4606, 4756)]