138889641

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{991}}^1$

素因数の和:1173

約数の個数: 32

約数和(自身を含む): 210272256

約数和(自身を除く): 71382615

約数列:

[1, 3, 11, 31, 33, 93, 137, 341, 411, 991, 1023, 1507, 2973, 4247, 4521, 10901, 12741, 30721, 32703, 46717, 92163, 135767, 140151, 337931, 407301, 1013793, 1493437, 4208777, 4480311, 12626331, 46296547, 138889641]

約数ペア:

[(1, 138889641), (3, 46296547), (11, 12626331), (31, 4480311), (33, 4208777), (93, 1493437), (137, 1013793), (341, 407301), (411, 337931), (991, 140151), (1023, 135767), (1507, 92163), (2973, 46717), (4247, 32703), (4521, 30721), (10901, 12741)]