20161993676

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{42853}}^1$

素因数の和:42939

約数の個数: 72

約数和(自身を含む): 41994520176

約数和(自身を除く): 21832526500

約数列:

[1, 2, 4, 11, 17, 22, 34, 37, 44, 68, 74, 148, 187, 289, 374, 407, 578, 629, 748, 814, 1156, 1258, 1628, 2516, 3179, 6358, 6919, 10693, 12716, 13838, 21386, 27676, 42772, 42853, 85706, 117623, 171412, 235246, 470492, 471383, 728501, 942766, 1457002, 1585561, 1885532, 2914004, 3171122, 6342244, 8013511, 12384517, 16027022, 17441171, 24769034, 26954537, 32054044, 34882342, 49538068, 53909074, 69764684, 107818148, 136229687, 272459374, 296499907, 458227129, 544918748, 592999814, 916454258, 1185999628, 1832908516, 5040498419, 10080996838, 20161993676]

約数ペア:

[(1, 20161993676), (2, 10080996838), (4, 5040498419), (11, 1832908516), (17, 1185999628), (22, 916454258), (34, 592999814), (37, 544918748), (44, 458227129), (68, 296499907), (74, 272459374), (148, 136229687), (187, 107818148), (289, 69764684), (374, 53909074), (407, 49538068), (578, 34882342), (629, 32054044), (748, 26954537), (814, 24769034), (1156, 17441171), (1258, 16027022), (1628, 12384517), (2516, 8013511), (3179, 6342244), (6358, 3171122), (6919, 2914004), (10693, 1885532), (12716, 1585561), (13838, 1457002), (21386, 942766), (27676, 728501), (42772, 471383), (42853, 470492), (85706, 235246), (117623, 171412)]