21330120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:467

約数の個数: 128

約数和(自身を含む): 74419200

約数和(自身を除く): 53089080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 67, 70, 84, 105, 120, 134, 140, 168, 201, 210, 268, 280, 335, 379, 402, 420, 469, 536, 670, 758, 804, 840, 938, 1005, 1137, 1340, 1407, 1516, 1608, 1876, 1895, 2010, 2274, 2345, 2653, 2680, 2814, 3032, 3752, 3790, 4020, 4548, 4690, 5306, 5628, 5685, 7035, 7580, 7959, 8040, 9096, 9380, 10612, 11256, 11370, 13265, 14070, 15160, 15918, 18760, 21224, 22740, 25393, 26530, 28140, 31836, 39795, 45480, 50786, 53060, 56280, 63672, 76179, 79590, 101572, 106120, 126965, 152358, 159180, 177751, 203144, 253930, 304716, 318360, 355502, 380895, 507860, 533253, 609432, 711004, 761790, 888755, 1015720, 1066506, 1422008, 1523580, 1777510, 2133012, 2666265, 3047160, 3555020, 4266024, 5332530, 7110040, 10665060, 21330120]

約数ペア:

[(1, 21330120), (2, 10665060), (3, 7110040), (4, 5332530), (5, 4266024), (6, 3555020), (7, 3047160), (8, 2666265), (10, 2133012), (12, 1777510), (14, 1523580), (15, 1422008), (20, 1066506), (21, 1015720), (24, 888755), (28, 761790), (30, 711004), (35, 609432), (40, 533253), (42, 507860), (56, 380895), (60, 355502), (67, 318360), (70, 304716), (84, 253930), (105, 203144), (120, 177751), (134, 159180), (140, 152358), (168, 126965), (201, 106120), (210, 101572), (268, 79590), (280, 76179), (335, 63672), (379, 56280), (402, 53060), (420, 50786), (469, 45480), (536, 39795), (670, 31836), (758, 28140), (804, 26530), (840, 25393), (938, 22740), (1005, 21224), (1137, 18760), (1340, 15918), (1407, 15160), (1516, 14070), (1608, 13265), (1876, 11370), (1895, 11256), (2010, 10612), (2274, 9380), (2345, 9096), (2653, 8040), (2680, 7959), (2814, 7580), (3032, 7035), (3752, 5685), (3790, 5628), (4020, 5306), (4548, 4690)]