20113821

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{599}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 36691200

約数和(自身を除く): 16577379

約数列:

[1, 3, 7, 9, 13, 21, 39, 41, 63, 91, 117, 123, 273, 287, 369, 533, 599, 819, 861, 1599, 1797, 2583, 3731, 4193, 4797, 5391, 7787, 11193, 12579, 23361, 24559, 33579, 37737, 54509, 70083, 73677, 163527, 171913, 221031, 319267, 490581, 515739, 957801, 1547217, 2234869, 2873403, 6704607, 20113821]

約数ペア:

[(1, 20113821), (3, 6704607), (7, 2873403), (9, 2234869), (13, 1547217), (21, 957801), (39, 515739), (41, 490581), (63, 319267), (91, 221031), (117, 171913), (123, 163527), (273, 73677), (287, 70083), (369, 54509), (533, 37737), (599, 33579), (819, 24559), (861, 23361), (1599, 12579), (1797, 11193), (2583, 7787), (3731, 5391), (4193, 4797)]