20717491388

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{675541}}^1$

素因数の和:675614

約数の個数: 48

約数和(自身を含む): 42899619168

約数和(自身を除く): 22182127780

約数列:

[1, 2, 4, 11, 17, 22, 34, 41, 44, 68, 82, 164, 187, 374, 451, 697, 748, 902, 1394, 1804, 2788, 7667, 15334, 30668, 675541, 1351082, 2702164, 7430951, 11484197, 14861902, 22968394, 27697181, 29723804, 45936788, 55394362, 110788724, 126326167, 252652334, 304668991, 470852077, 505304668, 609337982, 941704154, 1218675964, 1883408308, 5179372847, 10358745694, 20717491388]

約数ペア:

[(1, 20717491388), (2, 10358745694), (4, 5179372847), (11, 1883408308), (17, 1218675964), (22, 941704154), (34, 609337982), (41, 505304668), (44, 470852077), (68, 304668991), (82, 252652334), (164, 126326167), (187, 110788724), (374, 55394362), (451, 45936788), (697, 29723804), (748, 27697181), (902, 22968394), (1394, 14861902), (1804, 11484197), (2788, 7430951), (7667, 2702164), (15334, 1351082), (30668, 675541)]