20856564

素因数分解:

$2^2\times 3^2\times {\mathrm{67}}^1\times {\mathrm{8647}}^1$

素因数の和:8724

約数の個数: 36

約数和(自身を含む): 53513824

約数和(自身を除く): 32657260

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 67, 134, 201, 268, 402, 603, 804, 1206, 2412, 8647, 17294, 25941, 34588, 51882, 77823, 103764, 155646, 311292, 579349, 1158698, 1738047, 2317396, 3476094, 5214141, 6952188, 10428282, 20856564]

約数ペア:

[(1, 20856564), (2, 10428282), (3, 6952188), (4, 5214141), (6, 3476094), (9, 2317396), (12, 1738047), (18, 1158698), (36, 579349), (67, 311292), (134, 155646), (201, 103764), (268, 77823), (402, 51882), (603, 34588), (804, 25941), (1206, 17294), (2412, 8647)]