18340959

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{127}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 31711232

約数和(自身を除く): 13370273

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 127, 161, 273, 299, 381, 483, 529, 889, 897, 1587, 1651, 2093, 2667, 2921, 3703, 4953, 6279, 6877, 8763, 11109, 11557, 20447, 20631, 34671, 37973, 48139, 61341, 67183, 113919, 144417, 201549, 265811, 470281, 797433, 873379, 1410843, 2620137, 6113653, 18340959]

約数ペア:

[(1, 18340959), (3, 6113653), (7, 2620137), (13, 1410843), (21, 873379), (23, 797433), (39, 470281), (69, 265811), (91, 201549), (127, 144417), (161, 113919), (273, 67183), (299, 61341), (381, 48139), (483, 37973), (529, 34671), (889, 20631), (897, 20447), (1587, 11557), (1651, 11109), (2093, 8763), (2667, 6877), (2921, 6279), (3703, 4953)]