13561821

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 24984960

約数和(自身を除く): 11423139

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 571, 609, 819, 1131, 1713, 1827, 2639, 3393, 3997, 5139, 7423, 7917, 11991, 16559, 22269, 23751, 35973, 49677, 51961, 66807, 115913, 149031, 155883, 215267, 347739, 467649, 645801, 1043217, 1506869, 1937403, 4520607, 13561821]

約数ペア:

[(1, 13561821), (3, 4520607), (7, 1937403), (9, 1506869), (13, 1043217), (21, 645801), (29, 467649), (39, 347739), (63, 215267), (87, 155883), (91, 149031), (117, 115913), (203, 66807), (261, 51961), (273, 49677), (377, 35973), (571, 23751), (609, 22269), (819, 16559), (1131, 11991), (1713, 7917), (1827, 7423), (2639, 5139), (3393, 3997)]