21238266

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:148

約数の個数: 96

約数和(自身を含む): 53187840

約数和(自身を除く): 31949574

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 47, 49, 53, 58, 87, 94, 98, 106, 141, 147, 159, 174, 203, 282, 294, 318, 329, 371, 406, 609, 658, 742, 987, 1113, 1218, 1363, 1421, 1537, 1974, 2226, 2303, 2491, 2597, 2726, 2842, 3074, 4089, 4263, 4606, 4611, 4982, 5194, 6909, 7473, 7791, 8178, 8526, 9222, 9541, 10759, 13818, 14946, 15582, 17437, 19082, 21518, 28623, 32277, 34874, 52311, 57246, 64554, 66787, 72239, 75313, 104622, 122059, 133574, 144478, 150626, 200361, 216717, 225939, 244118, 366177, 400722, 433434, 451878, 505673, 732354, 1011346, 1517019, 3034038, 3539711, 7079422, 10619133, 21238266]

約数ペア:

[(1, 21238266), (2, 10619133), (3, 7079422), (6, 3539711), (7, 3034038), (14, 1517019), (21, 1011346), (29, 732354), (42, 505673), (47, 451878), (49, 433434), (53, 400722), (58, 366177), (87, 244118), (94, 225939), (98, 216717), (106, 200361), (141, 150626), (147, 144478), (159, 133574), (174, 122059), (203, 104622), (282, 75313), (294, 72239), (318, 66787), (329, 64554), (371, 57246), (406, 52311), (609, 34874), (658, 32277), (742, 28623), (987, 21518), (1113, 19082), (1218, 17437), (1363, 15582), (1421, 14946), (1537, 13818), (1974, 10759), (2226, 9541), (2303, 9222), (2491, 8526), (2597, 8178), (2726, 7791), (2842, 7473), (3074, 6909), (4089, 5194), (4263, 4982), (4606, 4611)]