138221181

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:727

約数の個数: 64

約数和(自身を含む): 250777600

約数和(自身を除く): 112556419

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 61, 63, 133, 171, 183, 189, 399, 427, 513, 549, 631, 1159, 1197, 1281, 1647, 1893, 3477, 3591, 3843, 4417, 5679, 8113, 10431, 11529, 11989, 13251, 17037, 24339, 31293, 35967, 38491, 39753, 73017, 83923, 107901, 115473, 119259, 219051, 251769, 269437, 323703, 346419, 731329, 755307, 808311, 1039257, 2193987, 2265921, 2424933, 5119303, 6581961, 7274799, 15357909, 19745883, 46073727, 138221181]

約数ペア:

[(1, 138221181), (3, 46073727), (7, 19745883), (9, 15357909), (19, 7274799), (21, 6581961), (27, 5119303), (57, 2424933), (61, 2265921), (63, 2193987), (133, 1039257), (171, 808311), (183, 755307), (189, 731329), (399, 346419), (427, 323703), (513, 269437), (549, 251769), (631, 219051), (1159, 119259), (1197, 115473), (1281, 107901), (1647, 83923), (1893, 73017), (3477, 39753), (3591, 38491), (3843, 35967), (4417, 31293), (5679, 24339), (8113, 17037), (10431, 13251), (11529, 11989)]