18800847

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 31039008

約数和(自身を除く): 12238161

約数列:

[1, 3, 9, 13, 37, 39, 43, 101, 111, 117, 129, 303, 333, 387, 481, 559, 909, 1313, 1443, 1591, 1677, 3737, 3939, 4329, 4343, 4773, 5031, 11211, 11817, 13029, 14319, 20683, 33633, 39087, 48581, 56459, 62049, 145743, 160691, 169377, 186147, 437229, 482073, 508131, 1446219, 2088983, 6266949, 18800847]

約数ペア:

[(1, 18800847), (3, 6266949), (9, 2088983), (13, 1446219), (37, 508131), (39, 482073), (43, 437229), (101, 186147), (111, 169377), (117, 160691), (129, 145743), (303, 62049), (333, 56459), (387, 48581), (481, 39087), (559, 33633), (909, 20683), (1313, 14319), (1443, 13029), (1591, 11817), (1677, 11211), (3737, 5031), (3939, 4773), (4329, 4343)]