21120588005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{878743}}^1$

素因数の和:878801

約数の個数: 32

約数和(自身を含む): 30369392640

約数和(自身を除く): 9248804635

約数列:

[1, 5, 11, 19, 23, 55, 95, 115, 209, 253, 437, 1045, 1265, 2185, 4807, 24035, 878743, 4393715, 9666173, 16696117, 20211089, 48330865, 83480585, 101055445, 183657287, 222321979, 384010691, 918286435, 1111609895, 1920053455, 4224117601, 21120588005]

約数ペア:

[(1, 21120588005), (5, 4224117601), (11, 1920053455), (19, 1111609895), (23, 918286435), (55, 384010691), (95, 222321979), (115, 183657287), (209, 101055445), (253, 83480585), (437, 48330865), (1045, 20211089), (1265, 16696117), (2185, 9666173), (4807, 4393715), (24035, 878743)]