21078918

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{23899}}^1$

素因数の和:23921

約数の個数: 36

約数和(自身を含む): 53129700

約数和(自身を除く): 32050782

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 294, 441, 882, 23899, 47798, 71697, 143394, 167293, 215091, 334586, 430182, 501879, 1003758, 1171051, 1505637, 2342102, 3011274, 3513153, 7026306, 10539459, 21078918]

約数ペア:

[(1, 21078918), (2, 10539459), (3, 7026306), (6, 3513153), (7, 3011274), (9, 2342102), (14, 1505637), (18, 1171051), (21, 1003758), (42, 501879), (49, 430182), (63, 334586), (98, 215091), (126, 167293), (147, 143394), (294, 71697), (441, 47798), (882, 23899)]