21000814926

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1439}}^1\times {\mathrm{26729}}^1$

素因数の和:28193

約数の個数: 64

約数和(自身を含む): 51732172800

約数和(自身を除く): 30731357874

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273, 546, 1439, 2878, 4317, 8634, 10073, 18707, 20146, 26729, 30219, 37414, 53458, 56121, 60438, 80187, 112242, 130949, 160374, 187103, 261898, 347477, 374206, 392847, 561309, 694954, 785694, 1042431, 1122618, 2084862, 2432339, 4864678, 7297017, 14594034, 38463031, 76926062, 115389093, 230778186, 269241217, 500019403, 538482434, 807723651, 1000038806, 1500058209, 1615447302, 3000116418, 3500135821, 7000271642, 10500407463, 21000814926]

約数ペア:

[(1, 21000814926), (2, 10500407463), (3, 7000271642), (6, 3500135821), (7, 3000116418), (13, 1615447302), (14, 1500058209), (21, 1000038806), (26, 807723651), (39, 538482434), (42, 500019403), (78, 269241217), (91, 230778186), (182, 115389093), (273, 76926062), (546, 38463031), (1439, 14594034), (2878, 7297017), (4317, 4864678), (8634, 2432339), (10073, 2084862), (18707, 1122618), (20146, 1042431), (26729, 785694), (30219, 694954), (37414, 561309), (53458, 392847), (56121, 374206), (60438, 347477), (80187, 261898), (112242, 187103), (130949, 160374)]