18950308

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{97}}^1$

素因数の和:161

約数の個数: 54

約数和(自身を含む): 38540166

約数和(自身を除く): 19589858

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 97, 169, 194, 221, 289, 338, 388, 442, 578, 676, 884, 1156, 1261, 1649, 2522, 2873, 3298, 3757, 5044, 5746, 6596, 7514, 11492, 15028, 16393, 21437, 28033, 32786, 42874, 48841, 56066, 65572, 85748, 97682, 112132, 195364, 278681, 364429, 557362, 728858, 1114724, 1457716, 4737577, 9475154, 18950308]

約数ペア:

[(1, 18950308), (2, 9475154), (4, 4737577), (13, 1457716), (17, 1114724), (26, 728858), (34, 557362), (52, 364429), (68, 278681), (97, 195364), (169, 112132), (194, 97682), (221, 85748), (289, 65572), (338, 56066), (388, 48841), (442, 42874), (578, 32786), (676, 28033), (884, 21437), (1156, 16393), (1261, 15028), (1649, 11492), (2522, 7514), (2873, 6596), (3298, 5746), (3757, 5044)]