20193316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 42533568

約数和(自身を除く): 22340252

約数列:

[1, 2, 4, 11, 13, 22, 26, 43, 44, 52, 86, 143, 172, 286, 473, 559, 572, 821, 946, 1118, 1642, 1892, 2236, 3284, 6149, 9031, 10673, 12298, 18062, 21346, 24596, 35303, 36124, 42692, 70606, 117403, 141212, 234806, 388333, 458939, 469612, 776666, 917878, 1553332, 1835756, 5048329, 10096658, 20193316]

約数ペア:

[(1, 20193316), (2, 10096658), (4, 5048329), (11, 1835756), (13, 1553332), (22, 917878), (26, 776666), (43, 469612), (44, 458939), (52, 388333), (86, 234806), (143, 141212), (172, 117403), (286, 70606), (473, 42692), (559, 36124), (572, 35303), (821, 24596), (946, 21346), (1118, 18062), (1642, 12298), (1892, 10673), (2236, 9031), (3284, 6149)]