210945917

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 287637504

約数和(自身を除く): 76691587

約数列:

[1, 7, 13, 31, 37, 43, 47, 91, 217, 259, 301, 329, 403, 481, 559, 611, 1147, 1333, 1457, 1591, 1739, 2021, 2821, 3367, 3913, 4277, 8029, 9331, 10199, 11137, 12173, 14147, 14911, 17329, 18941, 20683, 22607, 26273, 49321, 53909, 62651, 74777, 104377, 121303, 132587, 144781, 158249, 183911, 345247, 377363, 438557, 523439, 641173, 700817, 814463, 972101, 2318087, 4488211, 4905719, 5701241, 6804707, 16226609, 30135131, 210945917]

約数ペア:

[(1, 210945917), (7, 30135131), (13, 16226609), (31, 6804707), (37, 5701241), (43, 4905719), (47, 4488211), (91, 2318087), (217, 972101), (259, 814463), (301, 700817), (329, 641173), (403, 523439), (481, 438557), (559, 377363), (611, 345247), (1147, 183911), (1333, 158249), (1457, 144781), (1591, 132587), (1739, 121303), (2021, 104377), (2821, 74777), (3367, 62651), (3913, 53909), (4277, 49321), (8029, 26273), (9331, 22607), (10199, 20683), (11137, 18941), (12173, 17329), (14147, 14911)]