18931902

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:409

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 23298258

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 89, 121, 178, 242, 267, 293, 363, 534, 586, 726, 879, 979, 1758, 1958, 2937, 3223, 5874, 6446, 9669, 10769, 19338, 21538, 26077, 32307, 35453, 52154, 64614, 70906, 78231, 106359, 156462, 212718, 286847, 573694, 860541, 1721082, 3155317, 6310634, 9465951, 18931902]

約数ペア:

[(1, 18931902), (2, 9465951), (3, 6310634), (6, 3155317), (11, 1721082), (22, 860541), (33, 573694), (66, 286847), (89, 212718), (121, 156462), (178, 106359), (242, 78231), (267, 70906), (293, 64614), (363, 52154), (534, 35453), (586, 32307), (726, 26077), (879, 21538), (979, 19338), (1758, 10769), (1958, 9669), (2937, 6446), (3223, 5874)]