20993648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100931}}^1$

素因数の和:100952

約数の個数: 20

約数和(自身を含む): 43804488

約数和(自身を除く): 22810840

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100931, 201862, 403724, 807448, 1312103, 1614896, 2624206, 5248412, 10496824, 20993648]

約数ペア:

[(1, 20993648), (2, 10496824), (4, 5248412), (8, 2624206), (13, 1614896), (16, 1312103), (26, 807448), (52, 403724), (104, 201862), (208, 100931)]