21288630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2081}}^1$

素因数の和:2133

約数の個数: 64

約数和(自身を含む): 57563136

約数和(自身を除く): 36274506

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 31, 33, 55, 62, 66, 93, 110, 155, 165, 186, 310, 330, 341, 465, 682, 930, 1023, 1705, 2046, 2081, 3410, 4162, 5115, 6243, 10230, 10405, 12486, 20810, 22891, 31215, 45782, 62430, 64511, 68673, 114455, 129022, 137346, 193533, 228910, 322555, 343365, 387066, 645110, 686730, 709621, 967665, 1419242, 1935330, 2128863, 3548105, 4257726, 7096210, 10644315, 21288630]

約数ペア:

[(1, 21288630), (2, 10644315), (3, 7096210), (5, 4257726), (6, 3548105), (10, 2128863), (11, 1935330), (15, 1419242), (22, 967665), (30, 709621), (31, 686730), (33, 645110), (55, 387066), (62, 343365), (66, 322555), (93, 228910), (110, 193533), (155, 137346), (165, 129022), (186, 114455), (310, 68673), (330, 64511), (341, 62430), (465, 45782), (682, 31215), (930, 22891), (1023, 20810), (1705, 12486), (2046, 10405), (2081, 10230), (3410, 6243), (4162, 5115)]