221513985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{63929}}^1$

素因数の和:63958

約数の個数: 48

約数和(自身を含む): 478707840

約数和(自身を除く): 257193855

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 63929, 191787, 319645, 447503, 575361, 703219, 958935, 1342509, 2109657, 2237515, 2876805, 3516095, 4027527, 4922533, 6328971, 6712545, 10548285, 14767599, 20137635, 24612665, 31644855, 44302797, 73837995, 221513985]

約数ペア:

[(1, 221513985), (3, 73837995), (5, 44302797), (7, 31644855), (9, 24612665), (11, 20137635), (15, 14767599), (21, 10548285), (33, 6712545), (35, 6328971), (45, 4922533), (55, 4027527), (63, 3516095), (77, 2876805), (99, 2237515), (105, 2109657), (165, 1342509), (231, 958935), (315, 703219), (385, 575361), (495, 447503), (693, 319645), (1155, 191787), (3465, 63929)]