16989876

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:509

約数の個数: 72

約数和(自身を含む): 46082400

約数和(自身を除く): 29092524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 59, 76, 114, 118, 171, 177, 228, 236, 342, 354, 421, 531, 684, 708, 842, 1062, 1121, 1263, 1684, 2124, 2242, 2526, 3363, 3789, 4484, 5052, 6726, 7578, 7999, 10089, 13452, 15156, 15998, 20178, 23997, 24839, 31996, 40356, 47994, 49678, 71991, 74517, 95988, 99356, 143982, 149034, 223551, 287964, 298068, 447102, 471941, 894204, 943882, 1415823, 1887764, 2831646, 4247469, 5663292, 8494938, 16989876]

約数ペア:

[(1, 16989876), (2, 8494938), (3, 5663292), (4, 4247469), (6, 2831646), (9, 1887764), (12, 1415823), (18, 943882), (19, 894204), (36, 471941), (38, 447102), (57, 298068), (59, 287964), (76, 223551), (114, 149034), (118, 143982), (171, 99356), (177, 95988), (228, 74517), (236, 71991), (342, 49678), (354, 47994), (421, 40356), (531, 31996), (684, 24839), (708, 23997), (842, 20178), (1062, 15998), (1121, 15156), (1263, 13452), (1684, 10089), (2124, 7999), (2242, 7578), (2526, 6726), (3363, 5052), (3789, 4484)]