15270321

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 24514560

約数和(自身を除く): 9244239

約数列:

[1, 3, 11, 23, 31, 33, 59, 69, 93, 121, 177, 253, 341, 363, 649, 713, 759, 1023, 1357, 1829, 1947, 2139, 2783, 3751, 4071, 5487, 7139, 7843, 8349, 11253, 14927, 20119, 21417, 23529, 42067, 44781, 60357, 86273, 126201, 164197, 221309, 258819, 462737, 492591, 663927, 1388211, 5090107, 15270321]

約数ペア:

[(1, 15270321), (3, 5090107), (11, 1388211), (23, 663927), (31, 492591), (33, 462737), (59, 258819), (69, 221309), (93, 164197), (121, 126201), (177, 86273), (253, 60357), (341, 44781), (363, 42067), (649, 23529), (713, 21417), (759, 20119), (1023, 14927), (1357, 11253), (1829, 8349), (1947, 7843), (2139, 7139), (2783, 5487), (3751, 4071)]