213117918

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{647}}^1$

素因数の和:809

約数の個数: 64

約数和(自身を含む): 475517952

約数和(自身を除く): 262400034

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 78, 82, 103, 123, 206, 246, 309, 533, 618, 647, 1066, 1294, 1339, 1599, 1941, 2678, 3198, 3882, 4017, 4223, 8034, 8411, 8446, 12669, 16822, 25233, 25338, 26527, 50466, 53054, 54899, 66641, 79581, 109798, 133282, 159162, 164697, 199923, 329394, 344851, 399846, 689702, 866333, 1034553, 1732666, 2069106, 2598999, 2732281, 5197998, 5464562, 8196843, 16393686, 35519653, 71039306, 106558959, 213117918]

約数ペア:

[(1, 213117918), (2, 106558959), (3, 71039306), (6, 35519653), (13, 16393686), (26, 8196843), (39, 5464562), (41, 5197998), (78, 2732281), (82, 2598999), (103, 2069106), (123, 1732666), (206, 1034553), (246, 866333), (309, 689702), (533, 399846), (618, 344851), (647, 329394), (1066, 199923), (1294, 164697), (1339, 159162), (1599, 133282), (1941, 109798), (2678, 79581), (3198, 66641), (3882, 54899), (4017, 53054), (4223, 50466), (8034, 26527), (8411, 25338), (8446, 25233), (12669, 16822)]