268268987

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 329702400

約数和(自身を除く): 61433413

約数列:

[1, 7, 23, 53, 149, 161, 211, 371, 1043, 1219, 1477, 3427, 4853, 7897, 8533, 11183, 23989, 31439, 33971, 55279, 78281, 181631, 220073, 257209, 723097, 1271417, 1666267, 1800463, 5061679, 11663869, 38324141, 268268987]

約数ペア:

[(1, 268268987), (7, 38324141), (23, 11663869), (53, 5061679), (149, 1800463), (161, 1666267), (211, 1271417), (371, 723097), (1043, 257209), (1219, 220073), (1477, 181631), (3427, 78281), (4853, 55279), (7897, 33971), (8533, 31439), (11183, 23989)]