19418266

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1973}}^1$

素因数の和:2038

約数の個数: 32

約数和(自身を含む): 36005760

約数和(自身を除く): 16587494

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 266, 518, 703, 1406, 1973, 3946, 4921, 9842, 13811, 27622, 37487, 73001, 74974, 146002, 262409, 511007, 524818, 1022014, 1387019, 2774038, 9709133, 19418266]

約数ペア:

[(1, 19418266), (2, 9709133), (7, 2774038), (14, 1387019), (19, 1022014), (37, 524818), (38, 511007), (74, 262409), (133, 146002), (259, 74974), (266, 73001), (518, 37487), (703, 27622), (1406, 13811), (1973, 9842), (3946, 4921)]