21650370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{787}}^1$

素因数の和:935

約数の個数: 64

約数和(自身を含む): 59913216

約数和(自身を除く): 38262846

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 131, 210, 262, 393, 655, 786, 787, 917, 1310, 1574, 1834, 1965, 2361, 2751, 3930, 3935, 4585, 4722, 5502, 5509, 7870, 9170, 11018, 11805, 13755, 16527, 23610, 27510, 27545, 33054, 55090, 82635, 103097, 165270, 206194, 309291, 515485, 618582, 721679, 1030970, 1443358, 1546455, 2165037, 3092910, 3608395, 4330074, 7216790, 10825185, 21650370]

約数ペア:

[(1, 21650370), (2, 10825185), (3, 7216790), (5, 4330074), (6, 3608395), (7, 3092910), (10, 2165037), (14, 1546455), (15, 1443358), (21, 1030970), (30, 721679), (35, 618582), (42, 515485), (70, 309291), (105, 206194), (131, 165270), (210, 103097), (262, 82635), (393, 55090), (655, 33054), (786, 27545), (787, 27510), (917, 23610), (1310, 16527), (1574, 13755), (1834, 11805), (1965, 11018), (2361, 9170), (2751, 7870), (3930, 5509), (3935, 5502), (4585, 4722)]