21045648

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1163}}^1$

素因数の和:1216

約数の個数: 80

約数和(自身を含む): 60621120

約数和(自身を除く): 39575472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 29, 39, 48, 52, 58, 78, 87, 104, 116, 156, 174, 208, 232, 312, 348, 377, 464, 624, 696, 754, 1131, 1163, 1392, 1508, 2262, 2326, 3016, 3489, 4524, 4652, 6032, 6978, 9048, 9304, 13956, 15119, 18096, 18608, 27912, 30238, 33727, 45357, 55824, 60476, 67454, 90714, 101181, 120952, 134908, 181428, 202362, 241904, 269816, 362856, 404724, 438451, 539632, 725712, 809448, 876902, 1315353, 1618896, 1753804, 2630706, 3507608, 5261412, 7015216, 10522824, 21045648]

約数ペア:

[(1, 21045648), (2, 10522824), (3, 7015216), (4, 5261412), (6, 3507608), (8, 2630706), (12, 1753804), (13, 1618896), (16, 1315353), (24, 876902), (26, 809448), (29, 725712), (39, 539632), (48, 438451), (52, 404724), (58, 362856), (78, 269816), (87, 241904), (104, 202362), (116, 181428), (156, 134908), (174, 120952), (208, 101181), (232, 90714), (312, 67454), (348, 60476), (377, 55824), (464, 45357), (624, 33727), (696, 30238), (754, 27912), (1131, 18608), (1163, 18096), (1392, 15119), (1508, 13956), (2262, 9304), (2326, 9048), (3016, 6978), (3489, 6032), (4524, 4652)]