19441503

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 12008097

約数列:

[1, 3, 9, 19, 41, 47, 57, 59, 123, 141, 171, 177, 369, 423, 531, 779, 893, 1121, 1927, 2337, 2419, 2679, 2773, 3363, 5781, 7011, 7257, 8037, 8319, 10089, 17343, 21771, 24957, 36613, 45961, 52687, 109839, 113693, 137883, 158061, 329517, 341079, 413649, 474183, 1023237, 2160167, 6480501, 19441503]

約数ペア:

[(1, 19441503), (3, 6480501), (9, 2160167), (19, 1023237), (41, 474183), (47, 413649), (57, 341079), (59, 329517), (123, 158061), (141, 137883), (171, 113693), (177, 109839), (369, 52687), (423, 45961), (531, 36613), (779, 24957), (893, 21771), (1121, 17343), (1927, 10089), (2337, 8319), (2419, 8037), (2679, 7257), (2773, 7011), (3363, 5781)]