18281613

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1249}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 30240000

約数和(自身を除く): 11958387

約数列:

[1, 3, 7, 17, 21, 41, 51, 119, 123, 287, 357, 697, 861, 1249, 2091, 3747, 4879, 8743, 14637, 21233, 26229, 51209, 63699, 148631, 153627, 358463, 445893, 870553, 1075389, 2611659, 6093871, 18281613]

約数ペア:

[(1, 18281613), (3, 6093871), (7, 2611659), (17, 1075389), (21, 870553), (41, 445893), (51, 358463), (119, 153627), (123, 148631), (287, 63699), (357, 51209), (697, 26229), (861, 21233), (1249, 14637), (2091, 8743), (3747, 4879)]