18150979

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 24339456

約数和(自身を除く): 6188477

約数列:

[1, 7, 11, 23, 37, 77, 161, 253, 259, 277, 407, 851, 1771, 1939, 2849, 3047, 5957, 6371, 9361, 10249, 21329, 44597, 65527, 70081, 71743, 112739, 235727, 490567, 789173, 1650089, 2592997, 18150979]

約数ペア:

[(1, 18150979), (7, 2592997), (11, 1650089), (23, 789173), (37, 490567), (77, 235727), (161, 112739), (253, 71743), (259, 70081), (277, 65527), (407, 44597), (851, 21329), (1771, 10249), (1939, 9361), (2849, 6371), (3047, 5957)]