19842628

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:376

約数の個数: 36

約数和(自身を含む): 38045700

約数和(自身を除く): 18203072

約数列:

[1, 2, 4, 13, 26, 52, 149, 169, 197, 298, 338, 394, 596, 676, 788, 1937, 2561, 3874, 5122, 7748, 10244, 25181, 29353, 33293, 50362, 58706, 66586, 100724, 117412, 133172, 381589, 763178, 1526356, 4960657, 9921314, 19842628]

約数ペア:

[(1, 19842628), (2, 9921314), (4, 4960657), (13, 1526356), (26, 763178), (52, 381589), (149, 133172), (169, 117412), (197, 100724), (298, 66586), (338, 58706), (394, 50362), (596, 33293), (676, 29353), (788, 25181), (1937, 10244), (2561, 7748), (3874, 5122)]