21499170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:296

約数の個数: 128

約数和(自身を含む): 66189312

約数和(自身を除く): 44690142

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 41, 42, 55, 66, 70, 77, 82, 105, 110, 123, 154, 165, 205, 210, 227, 231, 246, 287, 330, 385, 410, 451, 454, 462, 574, 615, 681, 770, 861, 902, 1135, 1155, 1230, 1353, 1362, 1435, 1589, 1722, 2255, 2270, 2310, 2497, 2706, 2870, 3157, 3178, 3405, 4305, 4510, 4767, 4994, 6314, 6765, 6810, 7491, 7945, 8610, 9307, 9471, 9534, 12485, 13530, 14982, 15785, 15890, 17479, 18614, 18942, 23835, 24970, 27921, 31570, 34958, 37455, 46535, 47355, 47670, 52437, 55842, 65149, 74910, 87395, 93070, 94710, 102377, 104874, 130298, 139605, 174790, 195447, 204754, 262185, 279210, 307131, 325745, 390894, 511885, 524370, 614262, 651490, 716639, 977235, 1023770, 1433278, 1535655, 1954470, 2149917, 3071310, 3583195, 4299834, 7166390, 10749585, 21499170]

約数ペア:

[(1, 21499170), (2, 10749585), (3, 7166390), (5, 4299834), (6, 3583195), (7, 3071310), (10, 2149917), (11, 1954470), (14, 1535655), (15, 1433278), (21, 1023770), (22, 977235), (30, 716639), (33, 651490), (35, 614262), (41, 524370), (42, 511885), (55, 390894), (66, 325745), (70, 307131), (77, 279210), (82, 262185), (105, 204754), (110, 195447), (123, 174790), (154, 139605), (165, 130298), (205, 104874), (210, 102377), (227, 94710), (231, 93070), (246, 87395), (287, 74910), (330, 65149), (385, 55842), (410, 52437), (451, 47670), (454, 47355), (462, 46535), (574, 37455), (615, 34958), (681, 31570), (770, 27921), (861, 24970), (902, 23835), (1135, 18942), (1155, 18614), (1230, 17479), (1353, 15890), (1362, 15785), (1435, 14982), (1589, 13530), (1722, 12485), (2255, 9534), (2270, 9471), (2310, 9307), (2497, 8610), (2706, 7945), (2870, 7491), (3157, 6810), (3178, 6765), (3405, 6314), (4305, 4994), (4510, 4767)]