19872966

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 45163008

約数和(自身を除く): 25290042

約数列:

[1, 2, 3, 6, 17, 23, 34, 43, 46, 51, 69, 86, 102, 129, 138, 197, 258, 391, 394, 591, 731, 782, 989, 1173, 1182, 1462, 1978, 2193, 2346, 2967, 3349, 4386, 4531, 5934, 6698, 8471, 9062, 10047, 13593, 16813, 16942, 20094, 25413, 27186, 33626, 50439, 50826, 77027, 100878, 144007, 154054, 194833, 231081, 288014, 389666, 432021, 462162, 584499, 864042, 1168998, 3312161, 6624322, 9936483, 19872966]

約数ペア:

[(1, 19872966), (2, 9936483), (3, 6624322), (6, 3312161), (17, 1168998), (23, 864042), (34, 584499), (43, 462162), (46, 432021), (51, 389666), (69, 288014), (86, 231081), (102, 194833), (129, 154054), (138, 144007), (197, 100878), (258, 77027), (391, 50826), (394, 50439), (591, 33626), (731, 27186), (782, 25413), (989, 20094), (1173, 16942), (1182, 16813), (1462, 13593), (1978, 10047), (2193, 9062), (2346, 8471), (2967, 6698), (3349, 5934), (4386, 4531)]