21846568

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{643}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 42658560

約数和(自身を除く): 20811992

約数列:

[1, 2, 4, 8, 31, 62, 124, 137, 248, 274, 548, 643, 1096, 1286, 2572, 4247, 5144, 8494, 16988, 19933, 33976, 39866, 79732, 88091, 159464, 176182, 352364, 704728, 2730821, 5461642, 10923284, 21846568]

約数ペア:

[(1, 21846568), (2, 10923284), (4, 5461642), (8, 2730821), (31, 704728), (62, 352364), (124, 176182), (137, 159464), (248, 88091), (274, 79732), (548, 39866), (643, 33976), (1096, 19933), (1286, 16988), (2572, 8494), (4247, 5144)]