20828484

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{823}}^1$

素因数の和:889

約数の個数: 72

約数和(自身を含む): 56987840

約数和(自身を除く): 36159356

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 37, 38, 57, 74, 76, 111, 114, 148, 171, 222, 228, 333, 342, 444, 666, 684, 703, 823, 1332, 1406, 1646, 2109, 2469, 2812, 3292, 4218, 4938, 6327, 7407, 8436, 9876, 12654, 14814, 15637, 25308, 29628, 30451, 31274, 46911, 60902, 62548, 91353, 93822, 121804, 140733, 182706, 187644, 274059, 281466, 365412, 548118, 562932, 578569, 1096236, 1157138, 1735707, 2314276, 3471414, 5207121, 6942828, 10414242, 20828484]

約数ペア:

[(1, 20828484), (2, 10414242), (3, 6942828), (4, 5207121), (6, 3471414), (9, 2314276), (12, 1735707), (18, 1157138), (19, 1096236), (36, 578569), (37, 562932), (38, 548118), (57, 365412), (74, 281466), (76, 274059), (111, 187644), (114, 182706), (148, 140733), (171, 121804), (222, 93822), (228, 91353), (333, 62548), (342, 60902), (444, 46911), (666, 31274), (684, 30451), (703, 29628), (823, 25308), (1332, 15637), (1406, 14814), (1646, 12654), (2109, 9876), (2469, 8436), (2812, 7407), (3292, 6327), (4218, 4938)]