21775558

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1153}}^1$

素因数の和:1252

約数の個数: 32

約数和(自身を含む): 39882240

約数和(自身を除く): 18106682

約数列:

[1, 2, 7, 14, 19, 38, 71, 133, 142, 266, 497, 994, 1153, 1349, 2306, 2698, 8071, 9443, 16142, 18886, 21907, 43814, 81863, 153349, 163726, 306698, 573041, 1146082, 1555397, 3110794, 10887779, 21775558]

約数ペア:

[(1, 21775558), (2, 10887779), (7, 3110794), (14, 1555397), (19, 1146082), (38, 573041), (71, 306698), (133, 163726), (142, 153349), (266, 81863), (497, 43814), (994, 21907), (1153, 18886), (1349, 16142), (2306, 9443), (2698, 8071)]