21384972

素因数分解:

$2^2\times 3^5\times 7^2\times {\mathrm{449}}^1$

素因数の和:482

約数の個数: 108

約数和(自身を含む): 65356200

約数和(自身を除く): 43971228

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, 449, 486, 567, 588, 756, 882, 898, 972, 1134, 1323, 1347, 1701, 1764, 1796, 2268, 2646, 2694, 3143, 3402, 3969, 4041, 5292, 5388, 6286, 6804, 7938, 8082, 9429, 11907, 12123, 12572, 15876, 16164, 18858, 22001, 23814, 24246, 28287, 36369, 37716, 44002, 47628, 48492, 56574, 66003, 72738, 84861, 88004, 109107, 113148, 132006, 145476, 169722, 198009, 218214, 254583, 264012, 339444, 396018, 436428, 509166, 594027, 763749, 792036, 1018332, 1188054, 1527498, 1782081, 2376108, 3054996, 3564162, 5346243, 7128324, 10692486, 21384972]

約数ペア:

[(1, 21384972), (2, 10692486), (3, 7128324), (4, 5346243), (6, 3564162), (7, 3054996), (9, 2376108), (12, 1782081), (14, 1527498), (18, 1188054), (21, 1018332), (27, 792036), (28, 763749), (36, 594027), (42, 509166), (49, 436428), (54, 396018), (63, 339444), (81, 264012), (84, 254583), (98, 218214), (108, 198009), (126, 169722), (147, 145476), (162, 132006), (189, 113148), (196, 109107), (243, 88004), (252, 84861), (294, 72738), (324, 66003), (378, 56574), (441, 48492), (449, 47628), (486, 44002), (567, 37716), (588, 36369), (756, 28287), (882, 24246), (898, 23814), (972, 22001), (1134, 18858), (1323, 16164), (1347, 15876), (1701, 12572), (1764, 12123), (1796, 11907), (2268, 9429), (2646, 8082), (2694, 7938), (3143, 6804), (3402, 6286), (3969, 5388), (4041, 5292)]