18726786

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{419}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 25302654

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 191, 234, 382, 419, 573, 838, 1146, 1257, 1719, 2483, 2514, 3438, 3771, 4966, 5447, 7449, 7542, 10894, 14898, 16341, 22347, 32682, 44694, 49023, 80029, 98046, 160058, 240087, 480174, 720261, 1040377, 1440522, 2080754, 3121131, 6242262, 9363393, 18726786]

約数ペア:

[(1, 18726786), (2, 9363393), (3, 6242262), (6, 3121131), (9, 2080754), (13, 1440522), (18, 1040377), (26, 720261), (39, 480174), (78, 240087), (117, 160058), (191, 98046), (234, 80029), (382, 49023), (419, 44694), (573, 32682), (838, 22347), (1146, 16341), (1257, 14898), (1719, 10894), (2483, 7542), (2514, 7449), (3438, 5447), (3771, 4966)]