21173292

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{4001}}^1$

素因数の和:4028

約数の個数: 72

約数和(自身を含む): 63871920

約数和(自身を除く): 42698628

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 4001, 5292, 8002, 12003, 16004, 24006, 28007, 36009, 48012, 56014, 72018, 84021, 108027, 112028, 144036, 168042, 196049, 216054, 252063, 336084, 392098, 432108, 504126, 588147, 756189, 784196, 1008252, 1176294, 1512378, 1764441, 2352588, 3024756, 3528882, 5293323, 7057764, 10586646, 21173292]

約数ペア:

[(1, 21173292), (2, 10586646), (3, 7057764), (4, 5293323), (6, 3528882), (7, 3024756), (9, 2352588), (12, 1764441), (14, 1512378), (18, 1176294), (21, 1008252), (27, 784196), (28, 756189), (36, 588147), (42, 504126), (49, 432108), (54, 392098), (63, 336084), (84, 252063), (98, 216054), (108, 196049), (126, 168042), (147, 144036), (189, 112028), (196, 108027), (252, 84021), (294, 72018), (378, 56014), (441, 48012), (588, 36009), (756, 28007), (882, 24006), (1323, 16004), (1764, 12003), (2646, 8002), (4001, 5292)]