21278786878

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1\times {\mathrm{373}}^1\times {\mathrm{1453}}^1$

素因数の和:2188

約数の個数: 32

約数和(自身を含む): 32614708896

約数和(自身を除く): 11335922018

約数列:

[1, 2, 67, 134, 293, 373, 586, 746, 1453, 2906, 19631, 24991, 39262, 49982, 97351, 109289, 194702, 218578, 425729, 541969, 851458, 1083938, 7322363, 14644726, 28523843, 36311923, 57047686, 72623846, 158796917, 317593834, 10639393439, 21278786878]

約数ペア:

[(1, 21278786878), (2, 10639393439), (67, 317593834), (134, 158796917), (293, 72623846), (373, 57047686), (586, 36311923), (746, 28523843), (1453, 14644726), (2906, 7322363), (19631, 1083938), (24991, 851458), (39262, 541969), (49982, 425729), (97351, 218578), (109289, 194702)]