15861447

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:673

約数の個数: 48

約数和(自身を含む): 28819200

約数和(自身を除く): 12957753

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 133, 147, 171, 189, 399, 441, 513, 631, 931, 1197, 1323, 1893, 2793, 3591, 4417, 5679, 8379, 11989, 13251, 17037, 25137, 30919, 35967, 39753, 83923, 92757, 107901, 119259, 251769, 278271, 323703, 587461, 755307, 834813, 1762383, 2265921, 5287149, 15861447]

約数ペア:

[(1, 15861447), (3, 5287149), (7, 2265921), (9, 1762383), (19, 834813), (21, 755307), (27, 587461), (49, 323703), (57, 278271), (63, 251769), (133, 119259), (147, 107901), (171, 92757), (189, 83923), (399, 39753), (441, 35967), (513, 30919), (631, 25137), (931, 17037), (1197, 13251), (1323, 11989), (1893, 8379), (2793, 5679), (3591, 4417)]