21166908

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{3761}}^1$

素因数の和:3842

約数の個数: 48

約数和(自身を含む): 57302784

約数和(自身を除く): 36135876

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 67, 84, 134, 201, 268, 402, 469, 804, 938, 1407, 1876, 2814, 3761, 5628, 7522, 11283, 15044, 22566, 26327, 45132, 52654, 78981, 105308, 157962, 251987, 315924, 503974, 755961, 1007948, 1511922, 1763909, 3023844, 3527818, 5291727, 7055636, 10583454, 21166908]

約数ペア:

[(1, 21166908), (2, 10583454), (3, 7055636), (4, 5291727), (6, 3527818), (7, 3023844), (12, 1763909), (14, 1511922), (21, 1007948), (28, 755961), (42, 503974), (67, 315924), (84, 251987), (134, 157962), (201, 105308), (268, 78981), (402, 52654), (469, 45132), (804, 26327), (938, 22566), (1407, 15044), (1876, 11283), (2814, 7522), (3761, 5628)]