18747376

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{743}}^1$

素因数の和:853

約数の個数: 40

約数和(自身を含む): 38747520

約数和(自身を除く): 20000144

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 83, 152, 166, 304, 332, 664, 743, 1328, 1486, 1577, 2972, 3154, 5944, 6308, 11888, 12616, 14117, 25232, 28234, 56468, 61669, 112936, 123338, 225872, 246676, 493352, 986704, 1171711, 2343422, 4686844, 9373688, 18747376]

約数ペア:

[(1, 18747376), (2, 9373688), (4, 4686844), (8, 2343422), (16, 1171711), (19, 986704), (38, 493352), (76, 246676), (83, 225872), (152, 123338), (166, 112936), (304, 61669), (332, 56468), (664, 28234), (743, 25232), (1328, 14117), (1486, 12616), (1577, 11888), (2972, 6308), (3154, 5944)]