21216

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:43

約数の個数: 48

約数和(自身を含む): 63504

約数和(自身を除く): 42288

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 32, 34, 39, 48, 51, 52, 68, 78, 96, 102, 104, 136, 156, 204, 208, 221, 272, 312, 408, 416, 442, 544, 624, 663, 816, 884, 1248, 1326, 1632, 1768, 2652, 3536, 5304, 7072, 10608, 21216]

約数ペア:

[(1, 21216), (2, 10608), (3, 7072), (4, 5304), (6, 3536), (8, 2652), (12, 1768), (13, 1632), (16, 1326), (17, 1248), (24, 884), (26, 816), (32, 663), (34, 624), (39, 544), (48, 442), (51, 416), (52, 408), (68, 312), (78, 272), (96, 221), (102, 208), (104, 204), (136, 156)]