21224140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:215

約数の個数: 96

約数和(自身を含む): 54835200

約数和(自身を除く): 33611060

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 79, 95, 101, 133, 140, 158, 190, 202, 266, 316, 380, 395, 404, 505, 532, 553, 665, 707, 790, 1010, 1106, 1330, 1414, 1501, 1580, 1919, 2020, 2212, 2660, 2765, 2828, 3002, 3535, 3838, 5530, 6004, 7070, 7505, 7676, 7979, 9595, 10507, 11060, 13433, 14140, 15010, 15958, 19190, 21014, 26866, 30020, 31916, 38380, 39895, 42028, 52535, 53732, 55853, 67165, 79790, 105070, 111706, 134330, 151601, 159580, 210140, 223412, 268660, 279265, 303202, 558530, 606404, 758005, 1061207, 1117060, 1516010, 2122414, 3032020, 4244828, 5306035, 10612070, 21224140]

約数ペア:

[(1, 21224140), (2, 10612070), (4, 5306035), (5, 4244828), (7, 3032020), (10, 2122414), (14, 1516010), (19, 1117060), (20, 1061207), (28, 758005), (35, 606404), (38, 558530), (70, 303202), (76, 279265), (79, 268660), (95, 223412), (101, 210140), (133, 159580), (140, 151601), (158, 134330), (190, 111706), (202, 105070), (266, 79790), (316, 67165), (380, 55853), (395, 53732), (404, 52535), (505, 42028), (532, 39895), (553, 38380), (665, 31916), (707, 30020), (790, 26866), (1010, 21014), (1106, 19190), (1330, 15958), (1414, 15010), (1501, 14140), (1580, 13433), (1919, 11060), (2020, 10507), (2212, 9595), (2660, 7979), (2765, 7676), (2828, 7505), (3002, 7070), (3535, 6004), (3838, 5530)]