21126210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3469}}^1$

素因数の和:3515

約数の個数: 64

約数和(自身を含む): 59961600

約数和(自身を除く): 38835390

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 58, 70, 87, 105, 145, 174, 203, 210, 290, 406, 435, 609, 870, 1015, 1218, 2030, 3045, 3469, 6090, 6938, 10407, 17345, 20814, 24283, 34690, 48566, 52035, 72849, 100601, 104070, 121415, 145698, 201202, 242830, 301803, 364245, 503005, 603606, 704207, 728490, 1006010, 1408414, 1509015, 2112621, 3018030, 3521035, 4225242, 7042070, 10563105, 21126210]

約数ペア:

[(1, 21126210), (2, 10563105), (3, 7042070), (5, 4225242), (6, 3521035), (7, 3018030), (10, 2112621), (14, 1509015), (15, 1408414), (21, 1006010), (29, 728490), (30, 704207), (35, 603606), (42, 503005), (58, 364245), (70, 301803), (87, 242830), (105, 201202), (145, 145698), (174, 121415), (203, 104070), (210, 100601), (290, 72849), (406, 52035), (435, 48566), (609, 34690), (870, 24283), (1015, 20814), (1218, 17345), (2030, 10407), (3045, 6938), (3469, 6090)]