21274528

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3181}}^1$

素因数の和:3221

約数の個数: 48

約数和(自身を含む): 48111840

約数和(自身を除く): 26837312

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 152, 176, 209, 304, 352, 418, 608, 836, 1672, 3181, 3344, 6362, 6688, 12724, 25448, 34991, 50896, 60439, 69982, 101792, 120878, 139964, 241756, 279928, 483512, 559856, 664829, 967024, 1119712, 1329658, 1934048, 2659316, 5318632, 10637264, 21274528]

約数ペア:

[(1, 21274528), (2, 10637264), (4, 5318632), (8, 2659316), (11, 1934048), (16, 1329658), (19, 1119712), (22, 967024), (32, 664829), (38, 559856), (44, 483512), (76, 279928), (88, 241756), (152, 139964), (176, 120878), (209, 101792), (304, 69982), (352, 60439), (418, 50896), (608, 34991), (836, 25448), (1672, 12724), (3181, 6688), (3344, 6362)]