21110940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6899}}^1$

素因数の和:6931

約数の個数: 72

約数和(自身を含む): 67813200

約数和(自身を除く): 46702260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 6899, 13798, 20697, 27596, 34495, 41394, 62091, 68990, 82788, 103485, 117283, 124182, 137980, 206970, 234566, 248364, 310455, 351849, 413940, 469132, 586415, 620910, 703698, 1055547, 1172830, 1241820, 1407396, 1759245, 2111094, 2345660, 3518490, 4222188, 5277735, 7036980, 10555470, 21110940]

約数ペア:

[(1, 21110940), (2, 10555470), (3, 7036980), (4, 5277735), (5, 4222188), (6, 3518490), (9, 2345660), (10, 2111094), (12, 1759245), (15, 1407396), (17, 1241820), (18, 1172830), (20, 1055547), (30, 703698), (34, 620910), (36, 586415), (45, 469132), (51, 413940), (60, 351849), (68, 310455), (85, 248364), (90, 234566), (102, 206970), (153, 137980), (170, 124182), (180, 117283), (204, 103485), (255, 82788), (306, 68990), (340, 62091), (510, 41394), (612, 34495), (765, 27596), (1020, 20697), (1530, 13798), (3060, 6899)]