21201810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{14423}}^1$

素因数の和:14447

約数の個数: 48

約数和(自身を含む): 59196096

約数和(自身を除く): 37994286

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 14423, 28846, 43269, 72115, 86538, 100961, 144230, 201922, 216345, 302883, 432690, 504805, 605766, 706727, 1009610, 1413454, 1514415, 2120181, 3028830, 3533635, 4240362, 7067270, 10600905, 21201810]

約数ペア:

[(1, 21201810), (2, 10600905), (3, 7067270), (5, 4240362), (6, 3533635), (7, 3028830), (10, 2120181), (14, 1514415), (15, 1413454), (21, 1009610), (30, 706727), (35, 605766), (42, 504805), (49, 432690), (70, 302883), (98, 216345), (105, 201922), (147, 144230), (210, 100961), (245, 86538), (294, 72115), (490, 43269), (735, 28846), (1470, 14423)]