21000960832

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{8807}}^1$

素因数の和:8928

約数の個数: 112

約数和(自身を含む): 45908000640

約数和(自身を除く): 24907039808

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 53, 64, 74, 76, 106, 148, 152, 212, 296, 304, 424, 592, 608, 703, 848, 1007, 1184, 1216, 1406, 1696, 1961, 2014, 2368, 2812, 3392, 3922, 4028, 5624, 7844, 8056, 8807, 11248, 15688, 16112, 17614, 22496, 31376, 32224, 35228, 37259, 44992, 62752, 64448, 70456, 74518, 125504, 140912, 149036, 167333, 281824, 298072, 325859, 334666, 466771, 563648, 596144, 651718, 669332, 933542, 1192288, 1303436, 1338664, 1867084, 2384576, 2606872, 2677328, 3734168, 5213744, 5354656, 6191321, 7468336, 8868649, 10427488, 10709312, 12382642, 14936672, 17270527, 17737298, 20854976, 24765284, 29873344, 34541054, 35474596, 49530568, 69082108, 70949192, 99061136, 138164216, 141898384, 198122272, 276328432, 283796768, 328140013, 396244544, 552656864, 567593536, 656280026, 1105313728, 1312560052, 2625120104, 5250240208, 10500480416, 21000960832]

約数ペア:

[(1, 21000960832), (2, 10500480416), (4, 5250240208), (8, 2625120104), (16, 1312560052), (19, 1105313728), (32, 656280026), (37, 567593536), (38, 552656864), (53, 396244544), (64, 328140013), (74, 283796768), (76, 276328432), (106, 198122272), (148, 141898384), (152, 138164216), (212, 99061136), (296, 70949192), (304, 69082108), (424, 49530568), (592, 35474596), (608, 34541054), (703, 29873344), (848, 24765284), (1007, 20854976), (1184, 17737298), (1216, 17270527), (1406, 14936672), (1696, 12382642), (1961, 10709312), (2014, 10427488), (2368, 8868649), (2812, 7468336), (3392, 6191321), (3922, 5354656), (4028, 5213744), (5624, 3734168), (7844, 2677328), (8056, 2606872), (8807, 2384576), (11248, 1867084), (15688, 1338664), (16112, 1303436), (17614, 1192288), (22496, 933542), (31376, 669332), (32224, 651718), (35228, 596144), (37259, 563648), (44992, 466771), (62752, 334666), (64448, 325859), (70456, 298072), (74518, 281824), (125504, 167333), (140912, 149036)]