27991299

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 48066048

約数和(自身を除く): 20074749

約数列:

[1, 3, 7, 17, 21, 23, 49, 51, 69, 119, 147, 161, 357, 391, 483, 487, 833, 1127, 1173, 1461, 2499, 2737, 3381, 3409, 8211, 8279, 10227, 11201, 19159, 23863, 24837, 33603, 57477, 57953, 71589, 78407, 173859, 190417, 235221, 405671, 548849, 571251, 1217013, 1332919, 1646547, 3998757, 9330433, 27991299]

約数ペア:

[(1, 27991299), (3, 9330433), (7, 3998757), (17, 1646547), (21, 1332919), (23, 1217013), (49, 571251), (51, 548849), (69, 405671), (119, 235221), (147, 190417), (161, 173859), (357, 78407), (391, 71589), (483, 57953), (487, 57477), (833, 33603), (1127, 24837), (1173, 23863), (1461, 19159), (2499, 11201), (2737, 10227), (3381, 8279), (3409, 8211)]