61987905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{641}}^1$

素因数の和:966

約数の個数: 48

約数和(自身を含む): 123387264

約数和(自身を除く): 61399359

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 307, 315, 641, 921, 1535, 1923, 2149, 2763, 3205, 4487, 4605, 5769, 6447, 9615, 10745, 13461, 13815, 19341, 22435, 28845, 32235, 40383, 67305, 96705, 196787, 201915, 590361, 983935, 1377509, 1771083, 2951805, 4132527, 6887545, 8855415, 12397581, 20662635, 61987905]

約数ペア:

[(1, 61987905), (3, 20662635), (5, 12397581), (7, 8855415), (9, 6887545), (15, 4132527), (21, 2951805), (35, 1771083), (45, 1377509), (63, 983935), (105, 590361), (307, 201915), (315, 196787), (641, 96705), (921, 67305), (1535, 40383), (1923, 32235), (2149, 28845), (2763, 22435), (3205, 19341), (4487, 13815), (4605, 13461), (5769, 10745), (6447, 9615)]