20211761484

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{1777}}^1\times {\mathrm{2273}}^1$

素因数の和:4199

約数の個数: 72

約数和(自身を含む): 51510011280

約数和(自身を除く): 31298249796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 1777, 2273, 2502, 3554, 4546, 5004, 5331, 6819, 7108, 9092, 10662, 13638, 15993, 20457, 21324, 27276, 31986, 40914, 63972, 81828, 247003, 315947, 494006, 631894, 741009, 947841, 988012, 1263788, 1482018, 1895682, 2223027, 2843523, 2964036, 3791364, 4039121, 4446054, 5687046, 8078242, 8892108, 11374092, 12117363, 16156484, 24234726, 36352089, 48469452, 72704178, 145408356, 561437819, 1122875638, 1684313457, 2245751276, 3368626914, 5052940371, 6737253828, 10105880742, 20211761484]

約数ペア:

[(1, 20211761484), (2, 10105880742), (3, 6737253828), (4, 5052940371), (6, 3368626914), (9, 2245751276), (12, 1684313457), (18, 1122875638), (36, 561437819), (139, 145408356), (278, 72704178), (417, 48469452), (556, 36352089), (834, 24234726), (1251, 16156484), (1668, 12117363), (1777, 11374092), (2273, 8892108), (2502, 8078242), (3554, 5687046), (4546, 4446054), (5004, 4039121), (5331, 3791364), (6819, 2964036), (7108, 2843523), (9092, 2223027), (10662, 1895682), (13638, 1482018), (15993, 1263788), (20457, 988012), (21324, 947841), (27276, 741009), (31986, 631894), (40914, 494006), (63972, 315947), (81828, 247003)]