21835140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21407}}^1$

素因数の和:21436

約数の個数: 48

約数和(自身を含む): 64737792

約数和(自身を除く): 42902652

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21407, 42814, 64221, 85628, 107035, 128442, 214070, 256884, 321105, 363919, 428140, 642210, 727838, 1091757, 1284420, 1455676, 1819595, 2183514, 3639190, 4367028, 5458785, 7278380, 10917570, 21835140]

約数ペア:

[(1, 21835140), (2, 10917570), (3, 7278380), (4, 5458785), (5, 4367028), (6, 3639190), (10, 2183514), (12, 1819595), (15, 1455676), (17, 1284420), (20, 1091757), (30, 727838), (34, 642210), (51, 428140), (60, 363919), (68, 321105), (85, 256884), (102, 214070), (170, 128442), (204, 107035), (255, 85628), (340, 64221), (510, 42814), (1020, 21407)]