21141960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{25169}}^1$

素因数の和:25190

約数の個数: 64

約数和(自身を含む): 72489600

約数和(自身を除く): 51347640

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, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 25169, 50338, 75507, 100676, 125845, 151014, 176183, 201352, 251690, 302028, 352366, 377535, 503380, 528549, 604056, 704732, 755070, 880915, 1006760, 1057098, 1409464, 1510140, 1761830, 2114196, 2642745, 3020280, 3523660, 4228392, 5285490, 7047320, 10570980, 21141960]

約数ペア:

[(1, 21141960), (2, 10570980), (3, 7047320), (4, 5285490), (5, 4228392), (6, 3523660), (7, 3020280), (8, 2642745), (10, 2114196), (12, 1761830), (14, 1510140), (15, 1409464), (20, 1057098), (21, 1006760), (24, 880915), (28, 755070), (30, 704732), (35, 604056), (40, 528549), (42, 503380), (56, 377535), (60, 352366), (70, 302028), (84, 251690), (105, 201352), (120, 176183), (140, 151014), (168, 125845), (210, 100676), (280, 75507), (420, 50338), (840, 25169)]