21193341

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{773}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 32941440

約数和(自身を除く): 11748099

約数列:

[1, 3, 13, 19, 37, 39, 57, 111, 247, 481, 703, 741, 773, 1443, 2109, 2319, 9139, 10049, 14687, 27417, 28601, 30147, 44061, 85803, 190931, 371813, 543419, 572793, 1115439, 1630257, 7064447, 21193341]

約数ペア:

[(1, 21193341), (3, 7064447), (13, 1630257), (19, 1115439), (37, 572793), (39, 543419), (57, 371813), (111, 190931), (247, 85803), (481, 44061), (703, 30147), (741, 28601), (773, 27417), (1443, 14687), (2109, 10049), (2319, 9139)]