21049416

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:280

約数の個数: 128

約数和(自身を含む): 64512000

約数和(自身を除く): 43462584

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 23, 24, 27, 36, 38, 46, 54, 57, 69, 72, 76, 92, 108, 114, 138, 152, 171, 184, 207, 216, 223, 228, 276, 342, 414, 437, 446, 456, 513, 552, 621, 669, 684, 828, 874, 892, 1026, 1242, 1311, 1338, 1368, 1656, 1748, 1784, 2007, 2052, 2484, 2622, 2676, 3496, 3933, 4014, 4104, 4237, 4968, 5129, 5244, 5352, 6021, 7866, 8028, 8474, 10258, 10488, 11799, 12042, 12711, 15387, 15732, 16056, 16948, 20516, 23598, 24084, 25422, 30774, 31464, 33896, 38133, 41032, 46161, 47196, 48168, 50844, 61548, 76266, 92322, 94392, 97451, 101688, 114399, 123096, 138483, 152532, 184644, 194902, 228798, 276966, 292353, 305064, 369288, 389804, 457596, 553932, 584706, 779608, 877059, 915192, 1107864, 1169412, 1754118, 2338824, 2631177, 3508236, 5262354, 7016472, 10524708, 21049416]

約数ペア:

[(1, 21049416), (2, 10524708), (3, 7016472), (4, 5262354), (6, 3508236), (8, 2631177), (9, 2338824), (12, 1754118), (18, 1169412), (19, 1107864), (23, 915192), (24, 877059), (27, 779608), (36, 584706), (38, 553932), (46, 457596), (54, 389804), (57, 369288), (69, 305064), (72, 292353), (76, 276966), (92, 228798), (108, 194902), (114, 184644), (138, 152532), (152, 138483), (171, 123096), (184, 114399), (207, 101688), (216, 97451), (223, 94392), (228, 92322), (276, 76266), (342, 61548), (414, 50844), (437, 48168), (446, 47196), (456, 46161), (513, 41032), (552, 38133), (621, 33896), (669, 31464), (684, 30774), (828, 25422), (874, 24084), (892, 23598), (1026, 20516), (1242, 16948), (1311, 16056), (1338, 15732), (1368, 15387), (1656, 12711), (1748, 12042), (1784, 11799), (2007, 10488), (2052, 10258), (2484, 8474), (2622, 8028), (2676, 7866), (3496, 6021), (3933, 5352), (4014, 5244), (4104, 5129), (4237, 4968)]