20944924

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5231}}^1$

素因数の和:5266

約数の個数: 48

約数和(自身を含む): 49222656

約数和(自身を除く): 28277732

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 5231, 10462, 20924, 36617, 57541, 68003, 73234, 115082, 136006, 146468, 230164, 272012, 402787, 476021, 748033, 805574, 952042, 1496066, 1611148, 1904084, 2992132, 5236231, 10472462, 20944924]

約数ペア:

[(1, 20944924), (2, 10472462), (4, 5236231), (7, 2992132), (11, 1904084), (13, 1611148), (14, 1496066), (22, 952042), (26, 805574), (28, 748033), (44, 476021), (52, 402787), (77, 272012), (91, 230164), (143, 146468), (154, 136006), (182, 115082), (286, 73234), (308, 68003), (364, 57541), (572, 36617), (1001, 20924), (2002, 10462), (4004, 5231)]