21305025

素因数分解:

$3^6\times 5^2\times 7^1\times {\mathrm{167}}^1$

素因数の和:202

約数の個数: 84

約数和(自身を含む): 45538752

約数和(自身を除く): 24233727

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 135, 167, 175, 189, 225, 243, 315, 405, 501, 525, 567, 675, 729, 835, 945, 1169, 1215, 1503, 1575, 1701, 2025, 2505, 2835, 3507, 3645, 4175, 4509, 4725, 5103, 5845, 6075, 7515, 8505, 10521, 12525, 13527, 14175, 17535, 18225, 22545, 25515, 29225, 31563, 37575, 40581, 42525, 52605, 67635, 87675, 94689, 112725, 121743, 127575, 157815, 202905, 263025, 284067, 338175, 473445, 608715, 789075, 852201, 1014525, 1420335, 2367225, 3043575, 4261005, 7101675, 21305025]

約数ペア:

[(1, 21305025), (3, 7101675), (5, 4261005), (7, 3043575), (9, 2367225), (15, 1420335), (21, 1014525), (25, 852201), (27, 789075), (35, 608715), (45, 473445), (63, 338175), (75, 284067), (81, 263025), (105, 202905), (135, 157815), (167, 127575), (175, 121743), (189, 112725), (225, 94689), (243, 87675), (315, 67635), (405, 52605), (501, 42525), (525, 40581), (567, 37575), (675, 31563), (729, 29225), (835, 25515), (945, 22545), (1169, 18225), (1215, 17535), (1503, 14175), (1575, 13527), (1701, 12525), (2025, 10521), (2505, 8505), (2835, 7515), (3507, 6075), (3645, 5845), (4175, 5103), (4509, 4725)]