20018796

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{3557}}^1$

素因数の和:3638

約数の個数: 48

約数和(自身を含む): 54195456

約数和(自身を除く): 34176660

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, 3557, 5628, 7114, 10671, 14228, 21342, 24899, 42684, 49798, 74697, 99596, 149394, 238319, 298788, 476638, 714957, 953276, 1429914, 1668233, 2859828, 3336466, 5004699, 6672932, 10009398, 20018796]

約数ペア:

[(1, 20018796), (2, 10009398), (3, 6672932), (4, 5004699), (6, 3336466), (7, 2859828), (12, 1668233), (14, 1429914), (21, 953276), (28, 714957), (42, 476638), (67, 298788), (84, 238319), (134, 149394), (201, 99596), (268, 74697), (402, 49798), (469, 42684), (804, 24899), (938, 21342), (1407, 14228), (1876, 10671), (2814, 7114), (3557, 5628)]