20364542

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:189

約数の個数: 48

約数和(自身を含む): 36516480

約数和(自身を除く): 16151938

約数列:

[1, 2, 11, 19, 22, 38, 43, 86, 103, 121, 206, 209, 242, 418, 473, 817, 946, 1133, 1634, 1957, 2266, 2299, 3914, 4429, 4598, 5203, 8858, 8987, 10406, 12463, 17974, 21527, 24926, 43054, 48719, 84151, 97438, 98857, 168302, 197714, 236797, 473594, 535909, 925661, 1071818, 1851322, 10182271, 20364542]

約数ペア:

[(1, 20364542), (2, 10182271), (11, 1851322), (19, 1071818), (22, 925661), (38, 535909), (43, 473594), (86, 236797), (103, 197714), (121, 168302), (206, 98857), (209, 97438), (242, 84151), (418, 48719), (473, 43054), (817, 24926), (946, 21527), (1133, 17974), (1634, 12463), (1957, 10406), (2266, 8987), (2299, 8858), (3914, 5203), (4429, 4598)]