21094220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6551}}^1$

素因数の和:6590

約数の個数: 48

約数和(自身を含む): 52835328

約数和(自身を除く): 31741108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6551, 13102, 26204, 32755, 45857, 65510, 91714, 131020, 150673, 183428, 229285, 301346, 458570, 602692, 753365, 917140, 1054711, 1506730, 2109422, 3013460, 4218844, 5273555, 10547110, 21094220]

約数ペア:

[(1, 21094220), (2, 10547110), (4, 5273555), (5, 4218844), (7, 3013460), (10, 2109422), (14, 1506730), (20, 1054711), (23, 917140), (28, 753365), (35, 602692), (46, 458570), (70, 301346), (92, 229285), (115, 183428), (140, 150673), (161, 131020), (230, 91714), (322, 65510), (460, 45857), (644, 32755), (805, 26204), (1610, 13102), (3220, 6551)]