18765628

素因数分解:

$2^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1429}}^1$

素因数の和:1514

約数の個数: 36

約数和(自身を含む): 38798760

約数和(自身を除く): 20033132

約数列:

[1, 2, 4, 7, 14, 28, 49, 67, 98, 134, 196, 268, 469, 938, 1429, 1876, 2858, 3283, 5716, 6566, 10003, 13132, 20006, 40012, 70021, 95743, 140042, 191486, 280084, 382972, 670201, 1340402, 2680804, 4691407, 9382814, 18765628]

約数ペア:

[(1, 18765628), (2, 9382814), (4, 4691407), (7, 2680804), (14, 1340402), (28, 670201), (49, 382972), (67, 280084), (98, 191486), (134, 140042), (196, 95743), (268, 70021), (469, 40012), (938, 20006), (1429, 13132), (1876, 10003), (2858, 6566), (3283, 5716)]