20722635

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2693}}^1$

素因数の和:2729

約数の個数: 40

約数和(自身を含む): 39116880

約数和(自身を除く): 18394245

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 2693, 7695, 8079, 13465, 24237, 40395, 51167, 72711, 121185, 153501, 218133, 255835, 363555, 460503, 767505, 1090665, 1381509, 2302515, 4144527, 6907545, 20722635]

約数ペア:

[(1, 20722635), (3, 6907545), (5, 4144527), (9, 2302515), (15, 1381509), (19, 1090665), (27, 767505), (45, 460503), (57, 363555), (81, 255835), (95, 218133), (135, 153501), (171, 121185), (285, 72711), (405, 51167), (513, 40395), (855, 24237), (1539, 13465), (2565, 8079), (2693, 7695)]