19405323

素因数分解:

$3^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:656

約数の個数: 36

約数和(自身を含む): 33078240

約数和(自身を除く): 13672917

約数列:

[1, 3, 7, 9, 21, 49, 63, 79, 147, 237, 441, 553, 557, 711, 1659, 1671, 3871, 3899, 4977, 5013, 11613, 11697, 27293, 34839, 35091, 44003, 81879, 132009, 245637, 308021, 396027, 924063, 2156147, 2772189, 6468441, 19405323]

約数ペア:

[(1, 19405323), (3, 6468441), (7, 2772189), (9, 2156147), (21, 924063), (49, 396027), (63, 308021), (79, 245637), (147, 132009), (237, 81879), (441, 44003), (553, 35091), (557, 34839), (711, 27293), (1659, 11697), (1671, 11613), (3871, 5013), (3899, 4977)]