21715461

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{151}}^1$

素因数の和:234

約数の個数: 36

約数和(自身を含む): 34421920

約数和(自身を除く): 12706459

約数列:

[1, 3, 9, 19, 29, 57, 87, 151, 171, 261, 453, 551, 841, 1359, 1653, 2523, 2869, 4379, 4959, 7569, 8607, 13137, 15979, 25821, 39411, 47937, 83201, 126991, 143811, 249603, 380973, 748809, 1142919, 2412829, 7238487, 21715461]

約数ペア:

[(1, 21715461), (3, 7238487), (9, 2412829), (19, 1142919), (29, 748809), (57, 380973), (87, 249603), (151, 143811), (171, 126991), (261, 83201), (453, 47937), (551, 39411), (841, 25821), (1359, 15979), (1653, 13137), (2523, 8607), (2869, 7569), (4379, 4959)]