20967154

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:175

約数の個数: 48

約数和(自身を含む): 37353960

約数和(自身を除く): 16386806

約数列:

[1, 2, 13, 17, 26, 34, 41, 82, 89, 169, 178, 221, 338, 442, 533, 697, 1066, 1157, 1394, 1513, 2314, 2873, 3026, 3649, 5746, 6929, 7298, 9061, 13858, 15041, 18122, 19669, 30082, 39338, 47437, 62033, 94874, 117793, 124066, 235586, 255697, 511394, 616681, 806429, 1233362, 1612858, 10483577, 20967154]

約数ペア:

[(1, 20967154), (2, 10483577), (13, 1612858), (17, 1233362), (26, 806429), (34, 616681), (41, 511394), (82, 255697), (89, 235586), (169, 124066), (178, 117793), (221, 94874), (338, 62033), (442, 47437), (533, 39338), (697, 30082), (1066, 19669), (1157, 18122), (1394, 15041), (1513, 13858), (2314, 9061), (2873, 7298), (3026, 6929), (3649, 5746)]