21093940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8863}}^1$

素因数の和:8896

約数の個数: 48

約数和(自身を含む): 53609472

約数和(自身を除く): 32515532

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8863, 17726, 35452, 44315, 62041, 88630, 124082, 150671, 177260, 248164, 301342, 310205, 602684, 620410, 753355, 1054697, 1240820, 1506710, 2109394, 3013420, 4218788, 5273485, 10546970, 21093940]

約数ペア:

[(1, 21093940), (2, 10546970), (4, 5273485), (5, 4218788), (7, 3013420), (10, 2109394), (14, 1506710), (17, 1240820), (20, 1054697), (28, 753355), (34, 620410), (35, 602684), (68, 310205), (70, 301342), (85, 248164), (119, 177260), (140, 150671), (170, 124082), (238, 88630), (340, 62041), (476, 44315), (595, 35452), (1190, 17726), (2380, 8863)]