21673935

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 40195584

約数和(自身を除く): 18521649

約数列:

[1, 3, 5, 9, 15, 23, 43, 45, 69, 115, 129, 207, 215, 345, 387, 487, 645, 989, 1035, 1461, 1935, 2435, 2967, 4383, 4945, 7305, 8901, 11201, 14835, 20941, 21915, 33603, 44505, 56005, 62823, 100809, 104705, 168015, 188469, 314115, 481643, 504045, 942345, 1444929, 2408215, 4334787, 7224645, 21673935]

約数ペア:

[(1, 21673935), (3, 7224645), (5, 4334787), (9, 2408215), (15, 1444929), (23, 942345), (43, 504045), (45, 481643), (69, 314115), (115, 188469), (129, 168015), (207, 104705), (215, 100809), (345, 62823), (387, 56005), (487, 44505), (645, 33603), (989, 21915), (1035, 20941), (1461, 14835), (1935, 11201), (2435, 8901), (2967, 7305), (4383, 4945)]