21330225

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{467}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 45264960

約数和(自身を除く): 23934735

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 29, 35, 45, 63, 75, 87, 105, 145, 175, 203, 225, 261, 315, 435, 467, 525, 609, 725, 1015, 1305, 1401, 1575, 1827, 2175, 2335, 3045, 3269, 4203, 5075, 6525, 7005, 9135, 9807, 11675, 13543, 15225, 16345, 21015, 29421, 35025, 40629, 45675, 49035, 67715, 81725, 94801, 105075, 121887, 147105, 203145, 245175, 284403, 338575, 474005, 609435, 735525, 853209, 1015725, 1422015, 2370025, 3047175, 4266045, 7110075, 21330225]

約数ペア:

[(1, 21330225), (3, 7110075), (5, 4266045), (7, 3047175), (9, 2370025), (15, 1422015), (21, 1015725), (25, 853209), (29, 735525), (35, 609435), (45, 474005), (63, 338575), (75, 284403), (87, 245175), (105, 203145), (145, 147105), (175, 121887), (203, 105075), (225, 94801), (261, 81725), (315, 67715), (435, 49035), (467, 45675), (525, 40629), (609, 35025), (725, 29421), (1015, 21015), (1305, 16345), (1401, 15225), (1575, 13543), (1827, 11675), (2175, 9807), (2335, 9135), (3045, 7005), (3269, 6525), (4203, 5075)]