19913838

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1889}}^1$

素因数の和:2152

約数の個数: 32

約数和(自身を含む): 45722880

約数和(自身を除く): 25809042

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 251, 502, 753, 1506, 1757, 1889, 3514, 3778, 5271, 5667, 10542, 11334, 13223, 26446, 39669, 79338, 474139, 948278, 1422417, 2844834, 3318973, 6637946, 9956919, 19913838]

約数ペア:

[(1, 19913838), (2, 9956919), (3, 6637946), (6, 3318973), (7, 2844834), (14, 1422417), (21, 948278), (42, 474139), (251, 79338), (502, 39669), (753, 26446), (1506, 13223), (1757, 11334), (1889, 10542), (3514, 5667), (3778, 5271)]