19860743

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 25380864

約数和(自身を除く): 5520121

約数列:

[1, 7, 17, 47, 53, 67, 119, 329, 371, 469, 799, 901, 1139, 2491, 3149, 3551, 5593, 6307, 7973, 17437, 22043, 24857, 42347, 53533, 60367, 166897, 296429, 374731, 422569, 1168279, 2837249, 19860743]

約数ペア:

[(1, 19860743), (7, 2837249), (17, 1168279), (47, 422569), (53, 374731), (67, 296429), (119, 166897), (329, 60367), (371, 53533), (469, 42347), (799, 24857), (901, 22043), (1139, 17437), (2491, 7973), (3149, 6307), (3551, 5593)]