21578172

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{193}}^1$

素因数の和:240

約数の個数: 96

約数和(自身を含む): 63619584

約数和(自身を除く): 42041412

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 121, 132, 154, 193, 231, 242, 308, 363, 386, 462, 484, 579, 726, 772, 847, 924, 1158, 1331, 1351, 1452, 1694, 2123, 2316, 2541, 2662, 2702, 3388, 3993, 4053, 4246, 5082, 5324, 5404, 6369, 7986, 8106, 8492, 9317, 10164, 12738, 14861, 15972, 16212, 18634, 23353, 25476, 27951, 29722, 37268, 44583, 46706, 55902, 59444, 70059, 89166, 93412, 111804, 140118, 163471, 178332, 256883, 280236, 326942, 490413, 513766, 653884, 770649, 980826, 1027532, 1541298, 1798181, 1961652, 3082596, 3596362, 5394543, 7192724, 10789086, 21578172]

約数ペア:

[(1, 21578172), (2, 10789086), (3, 7192724), (4, 5394543), (6, 3596362), (7, 3082596), (11, 1961652), (12, 1798181), (14, 1541298), (21, 1027532), (22, 980826), (28, 770649), (33, 653884), (42, 513766), (44, 490413), (66, 326942), (77, 280236), (84, 256883), (121, 178332), (132, 163471), (154, 140118), (193, 111804), (231, 93412), (242, 89166), (308, 70059), (363, 59444), (386, 55902), (462, 46706), (484, 44583), (579, 37268), (726, 29722), (772, 27951), (847, 25476), (924, 23353), (1158, 18634), (1331, 16212), (1351, 15972), (1452, 14861), (1694, 12738), (2123, 10164), (2316, 9317), (2541, 8492), (2662, 8106), (2702, 7986), (3388, 6369), (3993, 5404), (4053, 5324), (4246, 5082)]