221520591

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 352123200

約数和(自身を除く): 130602609

約数列:

[1, 3, 9, 17, 37, 51, 109, 111, 153, 327, 333, 359, 629, 981, 1077, 1853, 1887, 3231, 4033, 5559, 5661, 6103, 12099, 13283, 16677, 18309, 36297, 39131, 39849, 54927, 68561, 117393, 119547, 205683, 225811, 352179, 617049, 665227, 677433, 1447847, 1995681, 2032299, 4343541, 5987043, 13030623, 24613399, 73840197, 221520591]

約数ペア:

[(1, 221520591), (3, 73840197), (9, 24613399), (17, 13030623), (37, 5987043), (51, 4343541), (109, 2032299), (111, 1995681), (153, 1447847), (327, 677433), (333, 665227), (359, 617049), (629, 352179), (981, 225811), (1077, 205683), (1853, 119547), (1887, 117393), (3231, 68561), (4033, 54927), (5559, 39849), (5661, 39131), (6103, 36297), (12099, 18309), (13283, 16677)]