217690816

素因数分解:

$2^6\times 7^1\times {\mathrm{223}}^1\times {\mathrm{2179}}^1$

素因数の和:2421

約数の個数: 56

約数和(自身を含む): 496133120

約数和(自身を除く): 278442304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 223, 224, 446, 448, 892, 1561, 1784, 2179, 3122, 3568, 4358, 6244, 7136, 8716, 12488, 14272, 15253, 17432, 24976, 30506, 34864, 49952, 61012, 69728, 99904, 122024, 139456, 244048, 485917, 488096, 971834, 976192, 1943668, 3401419, 3887336, 6802838, 7774672, 13605676, 15549344, 27211352, 31098688, 54422704, 108845408, 217690816]

約数ペア:

[(1, 217690816), (2, 108845408), (4, 54422704), (7, 31098688), (8, 27211352), (14, 15549344), (16, 13605676), (28, 7774672), (32, 6802838), (56, 3887336), (64, 3401419), (112, 1943668), (223, 976192), (224, 971834), (446, 488096), (448, 485917), (892, 244048), (1561, 139456), (1784, 122024), (2179, 99904), (3122, 69728), (3568, 61012), (4358, 49952), (6244, 34864), (7136, 30506), (8716, 24976), (12488, 17432), (14272, 15253)]