18719465

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 25557120

約数和(自身を除く): 6837655

約数列:

[1, 5, 17, 19, 67, 85, 95, 173, 323, 335, 865, 1139, 1273, 1615, 2941, 3287, 5695, 6365, 11591, 14705, 16435, 21641, 55879, 57955, 108205, 197047, 220229, 279395, 985235, 1101145, 3743893, 18719465]

約数ペア:

[(1, 18719465), (5, 3743893), (17, 1101145), (19, 985235), (67, 279395), (85, 220229), (95, 197047), (173, 108205), (323, 57955), (335, 55879), (865, 21641), (1139, 16435), (1273, 14705), (1615, 11591), (2941, 6365), (3287, 5695)]