21268548

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{4019}}^1$

素因数の和:4046

約数の個数: 72

約数和(自身を含む): 64159200

約数和(自身を除く): 42890652

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 4019, 5292, 8038, 12057, 16076, 24114, 28133, 36171, 48228, 56266, 72342, 84399, 108513, 112532, 144684, 168798, 196931, 217026, 253197, 337596, 393862, 434052, 506394, 590793, 759591, 787724, 1012788, 1181586, 1519182, 1772379, 2363172, 3038364, 3544758, 5317137, 7089516, 10634274, 21268548]

約数ペア:

[(1, 21268548), (2, 10634274), (3, 7089516), (4, 5317137), (6, 3544758), (7, 3038364), (9, 2363172), (12, 1772379), (14, 1519182), (18, 1181586), (21, 1012788), (27, 787724), (28, 759591), (36, 590793), (42, 506394), (49, 434052), (54, 393862), (63, 337596), (84, 253197), (98, 217026), (108, 196931), (126, 168798), (147, 144684), (189, 112532), (196, 108513), (252, 84399), (294, 72342), (378, 56266), (441, 48228), (588, 36171), (756, 28133), (882, 24114), (1323, 16076), (1764, 12057), (2646, 8038), (4019, 5292)]