21217248

素因数分解:

$2^5\times 3^3\times {\mathrm{13}}^1\times {\mathrm{1889}}^1$

素因数の和:1921

約数の個数: 96

約数和(自身を含む): 66679200

約数和(自身を除く): 45461952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 72, 78, 96, 104, 108, 117, 144, 156, 208, 216, 234, 288, 312, 351, 416, 432, 468, 624, 702, 864, 936, 1248, 1404, 1872, 1889, 2808, 3744, 3778, 5616, 5667, 7556, 11232, 11334, 15112, 17001, 22668, 24557, 30224, 34002, 45336, 49114, 51003, 60448, 68004, 73671, 90672, 98228, 102006, 136008, 147342, 181344, 196456, 204012, 221013, 272016, 294684, 392912, 408024, 442026, 544032, 589368, 663039, 785824, 816048, 884052, 1178736, 1326078, 1632096, 1768104, 2357472, 2652156, 3536208, 5304312, 7072416, 10608624, 21217248]

約数ペア:

[(1, 21217248), (2, 10608624), (3, 7072416), (4, 5304312), (6, 3536208), (8, 2652156), (9, 2357472), (12, 1768104), (13, 1632096), (16, 1326078), (18, 1178736), (24, 884052), (26, 816048), (27, 785824), (32, 663039), (36, 589368), (39, 544032), (48, 442026), (52, 408024), (54, 392912), (72, 294684), (78, 272016), (96, 221013), (104, 204012), (108, 196456), (117, 181344), (144, 147342), (156, 136008), (208, 102006), (216, 98228), (234, 90672), (288, 73671), (312, 68004), (351, 60448), (416, 51003), (432, 49114), (468, 45336), (624, 34002), (702, 30224), (864, 24557), (936, 22668), (1248, 17001), (1404, 15112), (1872, 11334), (1889, 11232), (2808, 7556), (3744, 5667), (3778, 5616)]