21665784

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4447}}^1$

素因数の和:4492

約数の個数: 64

約数和(自身を含む): 64051200

約数和(自身を除く): 42385416

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 29, 42, 56, 58, 84, 87, 116, 168, 174, 203, 232, 348, 406, 609, 696, 812, 1218, 1624, 2436, 4447, 4872, 8894, 13341, 17788, 26682, 31129, 35576, 53364, 62258, 93387, 106728, 124516, 128963, 186774, 249032, 257926, 373548, 386889, 515852, 747096, 773778, 902741, 1031704, 1547556, 1805482, 2708223, 3095112, 3610964, 5416446, 7221928, 10832892, 21665784]

約数ペア:

[(1, 21665784), (2, 10832892), (3, 7221928), (4, 5416446), (6, 3610964), (7, 3095112), (8, 2708223), (12, 1805482), (14, 1547556), (21, 1031704), (24, 902741), (28, 773778), (29, 747096), (42, 515852), (56, 386889), (58, 373548), (84, 257926), (87, 249032), (116, 186774), (168, 128963), (174, 124516), (203, 106728), (232, 93387), (348, 62258), (406, 53364), (609, 35576), (696, 31129), (812, 26682), (1218, 17788), (1624, 13341), (2436, 8894), (4447, 4872)]