21508104

素因数分解:

$2^3\times 3^1\times {\mathrm{131}}^1\times {\mathrm{6841}}^1$

素因数の和:6981

約数の個数: 32

約数和(自身を含む): 54188640

約数和(自身を除く): 32680536

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 131, 262, 393, 524, 786, 1048, 1572, 3144, 6841, 13682, 20523, 27364, 41046, 54728, 82092, 164184, 896171, 1792342, 2688513, 3584684, 5377026, 7169368, 10754052, 21508104]

約数ペア:

[(1, 21508104), (2, 10754052), (3, 7169368), (4, 5377026), (6, 3584684), (8, 2688513), (12, 1792342), (24, 896171), (131, 164184), (262, 82092), (393, 54728), (524, 41046), (786, 27364), (1048, 20523), (1572, 13682), (3144, 6841)]