21582715

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:1003

約数の個数: 32

約数和(自身を含む): 32855040

約数和(自身を除く): 11272325

約数列:

[1, 5, 7, 11, 35, 55, 61, 77, 305, 385, 427, 671, 919, 2135, 3355, 4595, 4697, 6433, 10109, 23485, 32165, 50545, 56059, 70763, 280295, 353815, 392413, 616649, 1962065, 3083245, 4316543, 21582715]

約数ペア:

[(1, 21582715), (5, 4316543), (7, 3083245), (11, 1962065), (35, 616649), (55, 392413), (61, 353815), (77, 280295), (305, 70763), (385, 56059), (427, 50545), (671, 32165), (919, 23485), (2135, 10109), (3355, 6433), (4595, 4697)]