20180921354

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{4973}}^1$

素因数の和:5447

約数の個数: 48

約数和(自身を含む): 34175259720

約数和(自身を除く): 13994338366

約数列:

[1, 2, 11, 22, 41, 82, 121, 242, 409, 451, 818, 902, 4499, 4961, 4973, 8998, 9922, 9946, 16769, 33538, 49489, 54703, 98978, 109406, 184459, 203893, 368918, 407786, 601733, 1203466, 2029049, 2033957, 2242823, 4058098, 4067914, 4485646, 22373527, 24671053, 44747054, 49342106, 83392237, 166784474, 246108797, 492217594, 917314607, 1834629214, 10090460677, 20180921354]

約数ペア:

[(1, 20180921354), (2, 10090460677), (11, 1834629214), (22, 917314607), (41, 492217594), (82, 246108797), (121, 166784474), (242, 83392237), (409, 49342106), (451, 44747054), (818, 24671053), (902, 22373527), (4499, 4485646), (4961, 4067914), (4973, 4058098), (8998, 2242823), (9922, 2033957), (9946, 2029049), (16769, 1203466), (33538, 601733), (49489, 407786), (54703, 368918), (98978, 203893), (109406, 184459)]