21937356

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{331}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 63807744

約数和(自身を除く): 41870388

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 263, 331, 526, 662, 789, 993, 1052, 1324, 1578, 1841, 1986, 2317, 2367, 2979, 3156, 3682, 3972, 4634, 4734, 5523, 5958, 6951, 7364, 9268, 9468, 11046, 11916, 13902, 16569, 20853, 22092, 27804, 33138, 41706, 66276, 83412, 87053, 174106, 261159, 348212, 522318, 609371, 783477, 1044636, 1218742, 1566954, 1828113, 2437484, 3133908, 3656226, 5484339, 7312452, 10968678, 21937356]

約数ペア:

[(1, 21937356), (2, 10968678), (3, 7312452), (4, 5484339), (6, 3656226), (7, 3133908), (9, 2437484), (12, 1828113), (14, 1566954), (18, 1218742), (21, 1044636), (28, 783477), (36, 609371), (42, 522318), (63, 348212), (84, 261159), (126, 174106), (252, 87053), (263, 83412), (331, 66276), (526, 41706), (662, 33138), (789, 27804), (993, 22092), (1052, 20853), (1324, 16569), (1578, 13902), (1841, 11916), (1986, 11046), (2317, 9468), (2367, 9268), (2979, 7364), (3156, 6951), (3682, 5958), (3972, 5523), (4634, 4734)]