20731635558

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{123407}}^1$

素因数の和:123499

約数の個数: 80

約数和(自身を含む): 49993568064

約数和(自身を除く): 29261932506

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 61, 81, 102, 122, 153, 162, 183, 306, 366, 459, 549, 918, 1037, 1098, 1377, 1647, 2074, 2754, 3111, 3294, 4941, 6222, 9333, 9882, 18666, 27999, 55998, 83997, 123407, 167994, 246814, 370221, 740442, 1110663, 2097919, 2221326, 3331989, 4195838, 6293757, 6663978, 7527827, 9995967, 12587514, 15055654, 18881271, 19991934, 22583481, 37762542, 45166962, 56643813, 67750443, 113287626, 127973059, 135500886, 169931439, 203251329, 255946118, 339862878, 383919177, 406502658, 609753987, 767838354, 1151757531, 1219507974, 2303515062, 3455272593, 6910545186, 10365817779, 20731635558]

約数ペア:

[(1, 20731635558), (2, 10365817779), (3, 6910545186), (6, 3455272593), (9, 2303515062), (17, 1219507974), (18, 1151757531), (27, 767838354), (34, 609753987), (51, 406502658), (54, 383919177), (61, 339862878), (81, 255946118), (102, 203251329), (122, 169931439), (153, 135500886), (162, 127973059), (183, 113287626), (306, 67750443), (366, 56643813), (459, 45166962), (549, 37762542), (918, 22583481), (1037, 19991934), (1098, 18881271), (1377, 15055654), (1647, 12587514), (2074, 9995967), (2754, 7527827), (3111, 6663978), (3294, 6293757), (4941, 4195838), (6222, 3331989), (9333, 2221326), (9882, 2097919), (18666, 1110663), (27999, 740442), (55998, 370221), (83997, 246814), (123407, 167994)]