21270366

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5347}}^1$

素因数の和:5385

約数の個数: 48

約数和(自身を含む): 52560144

約数和(自身を除く): 31289778

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 5347, 10694, 16041, 32082, 48123, 69511, 90899, 96246, 139022, 181798, 208533, 272697, 417066, 545394, 625599, 818091, 1181687, 1251198, 1636182, 2363374, 3545061, 7090122, 10635183, 21270366]

約数ペア:

[(1, 21270366), (2, 10635183), (3, 7090122), (6, 3545061), (9, 2363374), (13, 1636182), (17, 1251198), (18, 1181687), (26, 818091), (34, 625599), (39, 545394), (51, 417066), (78, 272697), (102, 208533), (117, 181798), (153, 139022), (221, 96246), (234, 90899), (306, 69511), (442, 48123), (663, 32082), (1326, 16041), (1989, 10694), (3978, 5347)]