21643594

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:227

約数の個数: 48

約数和(自身を含む): 39923712

約数和(自身を除く): 18280118

約数列:

[1, 2, 7, 14, 37, 47, 49, 74, 94, 98, 127, 254, 259, 329, 518, 658, 889, 1739, 1778, 1813, 2303, 3478, 3626, 4606, 4699, 5969, 6223, 9398, 11938, 12173, 12446, 24346, 32893, 41783, 65786, 83566, 85211, 170422, 220853, 230251, 292481, 441706, 460502, 584962, 1545971, 3091942, 10821797, 21643594]

約数ペア:

[(1, 21643594), (2, 10821797), (7, 3091942), (14, 1545971), (37, 584962), (47, 460502), (49, 441706), (74, 292481), (94, 230251), (98, 220853), (127, 170422), (254, 85211), (259, 83566), (329, 65786), (518, 41783), (658, 32893), (889, 24346), (1739, 12446), (1778, 12173), (1813, 11938), (2303, 9398), (3478, 6223), (3626, 5969), (4606, 4699)]