21608220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4339}}^1$

素因数の和:4434

約数の個数: 48

約数和(自身を含む): 61246080

約数和(自身を除く): 39637860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 83, 166, 249, 332, 415, 498, 830, 996, 1245, 1660, 2490, 4339, 4980, 8678, 13017, 17356, 21695, 26034, 43390, 52068, 65085, 86780, 130170, 260340, 360137, 720274, 1080411, 1440548, 1800685, 2160822, 3601370, 4321644, 5402055, 7202740, 10804110, 21608220]

約数ペア:

[(1, 21608220), (2, 10804110), (3, 7202740), (4, 5402055), (5, 4321644), (6, 3601370), (10, 2160822), (12, 1800685), (15, 1440548), (20, 1080411), (30, 720274), (60, 360137), (83, 260340), (166, 130170), (249, 86780), (332, 65085), (415, 52068), (498, 43390), (830, 26034), (996, 21695), (1245, 17356), (1660, 13017), (2490, 8678), (4339, 4980)]