20151735

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 33369600

約数和(自身を除く): 13217865

約数列:

[1, 3, 5, 15, 43, 129, 157, 199, 215, 471, 597, 645, 785, 995, 2355, 2985, 6751, 8557, 20253, 25671, 31243, 33755, 42785, 93729, 101265, 128355, 156215, 468645, 1343449, 4030347, 6717245, 20151735]

約数ペア:

[(1, 20151735), (3, 6717245), (5, 4030347), (15, 1343449), (43, 468645), (129, 156215), (157, 128355), (199, 101265), (215, 93729), (471, 42785), (597, 33755), (645, 31243), (785, 25671), (995, 20253), (2355, 8557), (2985, 6751)]