21394212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{5419}}^1$

素因数の和:5480

約数の個数: 48

約数和(自身を含む): 58275840

約数和(自身を除く): 36881628

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 84, 94, 141, 188, 282, 329, 564, 658, 987, 1316, 1974, 3948, 5419, 10838, 16257, 21676, 32514, 37933, 65028, 75866, 113799, 151732, 227598, 254693, 455196, 509386, 764079, 1018772, 1528158, 1782851, 3056316, 3565702, 5348553, 7131404, 10697106, 21394212]

約数ペア:

[(1, 21394212), (2, 10697106), (3, 7131404), (4, 5348553), (6, 3565702), (7, 3056316), (12, 1782851), (14, 1528158), (21, 1018772), (28, 764079), (42, 509386), (47, 455196), (84, 254693), (94, 227598), (141, 151732), (188, 113799), (282, 75866), (329, 65028), (564, 37933), (658, 32514), (987, 21676), (1316, 16257), (1974, 10838), (3948, 5419)]