19776015

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1231}}^1$

素因数の和:1269

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 22801905

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 51, 63, 85, 105, 119, 135, 153, 189, 255, 315, 357, 459, 595, 765, 945, 1071, 1231, 1785, 2295, 3213, 3693, 5355, 6155, 8617, 11079, 16065, 18465, 20927, 25851, 33237, 43085, 55395, 62781, 77553, 104635, 129255, 146489, 166185, 188343, 232659, 313905, 387765, 439467, 565029, 732445, 941715, 1163295, 1318401, 2197335, 2825145, 3955203, 6592005, 19776015]

約数ペア:

[(1, 19776015), (3, 6592005), (5, 3955203), (7, 2825145), (9, 2197335), (15, 1318401), (17, 1163295), (21, 941715), (27, 732445), (35, 565029), (45, 439467), (51, 387765), (63, 313905), (85, 232659), (105, 188343), (119, 166185), (135, 146489), (153, 129255), (189, 104635), (255, 77553), (315, 62781), (357, 55395), (459, 43085), (595, 33237), (765, 25851), (945, 20927), (1071, 18465), (1231, 16065), (1785, 11079), (2295, 8617), (3213, 6155), (3693, 5355)]