81315318

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1867}}^1$

素因数の和:1957

約数の個数: 64

約数和(自身を含む): 200130048

約数和(自身を除く): 118814730

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 61, 102, 119, 122, 183, 238, 357, 366, 427, 714, 854, 1037, 1281, 1867, 2074, 2562, 3111, 3734, 5601, 6222, 7259, 11202, 13069, 14518, 21777, 26138, 31739, 39207, 43554, 63478, 78414, 95217, 113887, 190434, 222173, 227774, 341661, 444346, 666519, 683322, 797209, 1333038, 1594418, 1936079, 2391627, 3872158, 4783254, 5808237, 11616474, 13552553, 27105106, 40657659, 81315318]

約数ペア:

[(1, 81315318), (2, 40657659), (3, 27105106), (6, 13552553), (7, 11616474), (14, 5808237), (17, 4783254), (21, 3872158), (34, 2391627), (42, 1936079), (51, 1594418), (61, 1333038), (102, 797209), (119, 683322), (122, 666519), (183, 444346), (238, 341661), (357, 227774), (366, 222173), (427, 190434), (714, 113887), (854, 95217), (1037, 78414), (1281, 63478), (1867, 43554), (2074, 39207), (2562, 31739), (3111, 26138), (3734, 21777), (5601, 14518), (6222, 13069), (7259, 11202)]