21255410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2647}}^1$

素因数の和:2738

約数の個数: 32

約数和(自身を含む): 42325632

約数和(自身を除く): 21070222

約数列:

[1, 2, 5, 10, 11, 22, 55, 73, 110, 146, 365, 730, 803, 1606, 2647, 4015, 5294, 8030, 13235, 26470, 29117, 58234, 145585, 193231, 291170, 386462, 966155, 1932310, 2125541, 4251082, 10627705, 21255410]

約数ペア:

[(1, 21255410), (2, 10627705), (5, 4251082), (10, 2125541), (11, 1932310), (22, 966155), (55, 386462), (73, 291170), (110, 193231), (146, 145585), (365, 58234), (730, 29117), (803, 26470), (1606, 13235), (2647, 8030), (4015, 5294)]