21014792

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{379}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 41040000

約数和(自身を除く): 20025208

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 239, 379, 478, 758, 956, 1516, 1912, 3032, 6931, 10991, 13862, 21982, 27724, 43964, 55448, 87928, 90581, 181162, 362324, 724648, 2626849, 5253698, 10507396, 21014792]

約数ペア:

[(1, 21014792), (2, 10507396), (4, 5253698), (8, 2626849), (29, 724648), (58, 362324), (116, 181162), (232, 90581), (239, 87928), (379, 55448), (478, 43964), (758, 27724), (956, 21982), (1516, 13862), (1912, 10991), (3032, 6931)]