21030867

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{419}}^1$

素因数の和:465

約数の個数: 48

約数和(自身を含む): 36892800

約数和(自身を除く): 15861933

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 143, 169, 297, 351, 419, 429, 507, 1257, 1287, 1521, 1859, 3771, 3861, 4563, 4609, 5447, 5577, 11313, 13827, 16341, 16731, 41481, 49023, 50193, 59917, 70811, 124443, 147069, 179751, 212433, 539253, 637299, 778921, 1617759, 1911897, 2336763, 7010289, 21030867]

約数ペア:

[(1, 21030867), (3, 7010289), (9, 2336763), (11, 1911897), (13, 1617759), (27, 778921), (33, 637299), (39, 539253), (99, 212433), (117, 179751), (143, 147069), (169, 124443), (297, 70811), (351, 59917), (419, 50193), (429, 49023), (507, 41481), (1257, 16731), (1287, 16341), (1521, 13827), (1859, 11313), (3771, 5577), (3861, 5447), (4563, 4609)]