21099204

素因数分解:

$2^2\times 3^5\times 7^2\times {\mathrm{443}}^1$

素因数の和:476

約数の個数: 108

約数和(自身を含む): 64484784

約数和(自身を除く): 43385580

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 84, 98, 108, 126, 147, 162, 189, 196, 243, 252, 294, 324, 378, 441, 443, 486, 567, 588, 756, 882, 886, 972, 1134, 1323, 1329, 1701, 1764, 1772, 2268, 2646, 2658, 3101, 3402, 3969, 3987, 5292, 5316, 6202, 6804, 7938, 7974, 9303, 11907, 11961, 12404, 15876, 15948, 18606, 21707, 23814, 23922, 27909, 35883, 37212, 43414, 47628, 47844, 55818, 65121, 71766, 83727, 86828, 107649, 111636, 130242, 143532, 167454, 195363, 215298, 251181, 260484, 334908, 390726, 430596, 502362, 586089, 753543, 781452, 1004724, 1172178, 1507086, 1758267, 2344356, 3014172, 3516534, 5274801, 7033068, 10549602, 21099204]

約数ペア:

[(1, 21099204), (2, 10549602), (3, 7033068), (4, 5274801), (6, 3516534), (7, 3014172), (9, 2344356), (12, 1758267), (14, 1507086), (18, 1172178), (21, 1004724), (27, 781452), (28, 753543), (36, 586089), (42, 502362), (49, 430596), (54, 390726), (63, 334908), (81, 260484), (84, 251181), (98, 215298), (108, 195363), (126, 167454), (147, 143532), (162, 130242), (189, 111636), (196, 107649), (243, 86828), (252, 83727), (294, 71766), (324, 65121), (378, 55818), (441, 47844), (443, 47628), (486, 43414), (567, 37212), (588, 35883), (756, 27909), (882, 23922), (886, 23814), (972, 21707), (1134, 18606), (1323, 15948), (1329, 15876), (1701, 12404), (1764, 11961), (1772, 11907), (2268, 9303), (2646, 7974), (2658, 7938), (3101, 6804), (3402, 6202), (3969, 5316), (3987, 5292)]