21840084

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{4127}}^1$

素因数の和:4154

約数の個数: 72

約数和(自身を含む): 65882880

約数和(自身を除く): 44042796

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, 4127, 5292, 8254, 12381, 16508, 24762, 28889, 37143, 49524, 57778, 74286, 86667, 111429, 115556, 148572, 173334, 202223, 222858, 260001, 346668, 404446, 445716, 520002, 606669, 780003, 808892, 1040004, 1213338, 1560006, 1820007, 2426676, 3120012, 3640014, 5460021, 7280028, 10920042, 21840084]

約数ペア:

[(1, 21840084), (2, 10920042), (3, 7280028), (4, 5460021), (6, 3640014), (7, 3120012), (9, 2426676), (12, 1820007), (14, 1560006), (18, 1213338), (21, 1040004), (27, 808892), (28, 780003), (36, 606669), (42, 520002), (49, 445716), (54, 404446), (63, 346668), (84, 260001), (98, 222858), (108, 202223), (126, 173334), (147, 148572), (189, 115556), (196, 111429), (252, 86667), (294, 74286), (378, 57778), (441, 49524), (588, 37143), (756, 28889), (882, 24762), (1323, 16508), (1764, 12381), (2646, 8254), (4127, 5292)]