18931642

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 31395600

約数和(自身を除く): 12463958

約数列:

[1, 2, 17, 34, 37, 74, 101, 149, 202, 298, 629, 1258, 1717, 2533, 3434, 3737, 5066, 5513, 7474, 11026, 15049, 30098, 63529, 93721, 127058, 187442, 255833, 511666, 556813, 1113626, 9465821, 18931642]

約数ペア:

[(1, 18931642), (2, 9465821), (17, 1113626), (34, 556813), (37, 511666), (74, 255833), (101, 187442), (149, 127058), (202, 93721), (298, 63529), (629, 30098), (1258, 15049), (1717, 11026), (2533, 7474), (3434, 5513), (3737, 5066)]