20642968

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2027}}^1$

素因数の和:2119

約数の個数: 32

約数和(自身を含む): 41371200

約数和(自身を除く): 20728232

約数列:

[1, 2, 4, 8, 19, 38, 67, 76, 134, 152, 268, 536, 1273, 2027, 2546, 4054, 5092, 8108, 10184, 16216, 38513, 77026, 135809, 154052, 271618, 308104, 543236, 1086472, 2580371, 5160742, 10321484, 20642968]

約数ペア:

[(1, 20642968), (2, 10321484), (4, 5160742), (8, 2580371), (19, 1086472), (38, 543236), (67, 308104), (76, 271618), (134, 154052), (152, 135809), (268, 77026), (536, 38513), (1273, 16216), (2027, 10184), (2546, 8108), (4054, 5092)]