20561976

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:293

約数の個数: 96

約数和(自身を含む): 59894640

約数和(自身を除く): 39332664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 72, 102, 107, 136, 153, 157, 204, 214, 306, 314, 321, 408, 428, 471, 612, 628, 642, 856, 942, 963, 1224, 1256, 1284, 1413, 1819, 1884, 1926, 2568, 2669, 2826, 3638, 3768, 3852, 5338, 5457, 5652, 7276, 7704, 8007, 10676, 10914, 11304, 14552, 16014, 16371, 16799, 21352, 21828, 24021, 32028, 32742, 33598, 43656, 48042, 50397, 64056, 65484, 67196, 96084, 100794, 130968, 134392, 151191, 192168, 201588, 285583, 302382, 403176, 571166, 604764, 856749, 1142332, 1209528, 1713498, 2284664, 2570247, 3426996, 5140494, 6853992, 10280988, 20561976]

約数ペア:

[(1, 20561976), (2, 10280988), (3, 6853992), (4, 5140494), (6, 3426996), (8, 2570247), (9, 2284664), (12, 1713498), (17, 1209528), (18, 1142332), (24, 856749), (34, 604764), (36, 571166), (51, 403176), (68, 302382), (72, 285583), (102, 201588), (107, 192168), (136, 151191), (153, 134392), (157, 130968), (204, 100794), (214, 96084), (306, 67196), (314, 65484), (321, 64056), (408, 50397), (428, 48042), (471, 43656), (612, 33598), (628, 32742), (642, 32028), (856, 24021), (942, 21828), (963, 21352), (1224, 16799), (1256, 16371), (1284, 16014), (1413, 14552), (1819, 11304), (1884, 10914), (1926, 10676), (2568, 8007), (2669, 7704), (2826, 7276), (3638, 5652), (3768, 5457), (3852, 5338)]