2221305

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 3898368

約数和(自身を除く): 1677063

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 281, 465, 527, 843, 1405, 1581, 2635, 4215, 4777, 7905, 8711, 14331, 23885, 26133, 43555, 71655, 130665, 148087, 444261, 740435, 2221305]

約数ペア:

[(1, 2221305), (3, 740435), (5, 444261), (15, 148087), (17, 130665), (31, 71655), (51, 43555), (85, 26133), (93, 23885), (155, 14331), (255, 8711), (281, 7905), (465, 4777), (527, 4215), (843, 2635), (1405, 1581)]