217326885

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1\times {\mathrm{953}}^1$

素因数の和:1645

約数の個数: 32

約数和(自身を含む): 363771648

約数和(自身を除く): 146444763

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 661, 953, 1983, 2859, 3305, 4765, 9915, 14295, 15203, 21919, 45609, 65757, 76015, 109595, 228045, 328785, 629933, 1889799, 3149665, 9448995, 14488459, 43465377, 72442295, 217326885]

約数ペア:

[(1, 217326885), (3, 72442295), (5, 43465377), (15, 14488459), (23, 9448995), (69, 3149665), (115, 1889799), (345, 629933), (661, 328785), (953, 228045), (1983, 109595), (2859, 76015), (3305, 65757), (4765, 45609), (9915, 21919), (14295, 15203)]