19601894

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 32931360

約数和(自身を除く): 13329466

約数列:

[1, 2, 13, 26, 43, 86, 89, 178, 197, 394, 559, 1118, 1157, 2314, 2561, 3827, 5122, 7654, 8471, 16942, 17533, 35066, 49751, 99502, 110123, 220246, 227929, 455858, 753919, 1507838, 9800947, 19601894]

約数ペア:

[(1, 19601894), (2, 9800947), (13, 1507838), (26, 753919), (43, 455858), (86, 227929), (89, 220246), (178, 110123), (197, 99502), (394, 49751), (559, 35066), (1118, 17533), (1157, 16942), (2314, 8471), (2561, 7654), (3827, 5122)]